Qualcomm CSR8645 с bluetooth. Установка модуля в автомагнитолу Alpine CDA-9883R [aptX работает, проверено].

Фото платы

Update1

• Генератором тона сделал несколько замеров, микрофон ACM1HB, программа TrueRTA, на слух слышал диапазон 45 — 19800 Гц (выше уже программа не воспроизводила).
  
  Фото замеров

  
  
• Снял спектрограмму программой на микрофон, встроенный в телефон. Музыку использовал: Andrey Kulik and Andrius Klimka — Main Theme
  
  Audio: MP3 48000Hz stereo 320kbps

  Audio
  Format: MPEG Audio
  Format version: Version 1
  Format profile: Layer 3
  Mode: Joint stereo
  Duration: 2 min 6 s
  Bit rate mode: Constant
  Bit rate: 320 kb/s
  Channel(s): 2 channels
  Sampling rate: 48.0 kHz
  Compression mode: Lossy
  Stream size: 4.84 MiB (100%)
  
  
  

Update2

• Информация, полученная из лога bluetooth, загруженного в Wireshark:
ShenZhen_3d:ea:1d (CSR8645) AVDTP 28 Rcvd ResponseAccept - GetCapabilities - Audio non-A2DP (aptX - 16000 32000 44100 48000, Stereo)
Frame 467: 28 bytes on wire (224 bits), 28 bytes captured (224 bits)
Encapsulation type: Bluetooth H4 with linux header (99)
Arrival Time: Mar 14, 2019 22:17:57.993808000 Russia TZ 2 Standard Time
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1552591077.993808000 seconds
[Time delta from previous captured frame: 0.000223000 seconds]
[Time delta from previous displayed frame: 0.000223000 seconds]
[Time since reference or first frame: 108.916483000 seconds]
Frame Number: 467
Frame Length: 28 bytes (224 bits)
Capture Length: 28 bytes (224 bits)
[Frame is marked: False]
[Frame is ignored: False]
Point-to-Point Direction: Received (1)
[Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btavdtp]
Bluetooth
[Source: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Destination: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
Bluetooth HCI H4
[Direction: Rcvd (0x01)]
HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
… 0000 0000 0010 = Connection Handle: 0x002
..10……… = PB Flag: First Automatically Flushable Packet (2)
00………… = BC Flag: Point-To-Point (0)
Data Total Length: 23
Data
[Connect in frame: 306]
[Disconnect in frame: 37880]
[Source BD_ADDR: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Source Device Name: CSR8645]
[Source Role: Slave (2)]
[Destination BD_ADDR: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Destination Device Name: Galaxy Tab S2]
[Destination Role: Master (1)]
[Last Role Change in Frame: 304]
[Current Mode: Active Mode (0)]
[Last Mode Change in Frame: 306]
Bluetooth L2CAP Protocol
Length: 19
CID: Dynamically Allocated Channel (0x0043)
[Connect in frame: 434]
[Disconnect in frame: 37856]
[Service: Audio Sink (0x110b)]
[PSM: AVDTP (0x0019)]
Bluetooth AVDTP Protocol
Signal: GetCapabilities (ResponseAccept)
0001… = Transaction: 0x1
… 00… = Packet Type: Single (0x0)
… ..10 = Message Type: ResponseAccept (0x2)
00…… = RFA: 0x0
..00 0010 = Signal: GetCapabilities (0x02)
Capabilities
Service: Media Transport
Service Category: Media Transport (0x01)
Length of Service Category: 0x00
Service: Media Codec — Audio non-A2DP (aptX — 16000 32000 44100 48000, Stereo)
Service Category: Media Codec (0x07)
Length of Service Category: 0x09
0000… = Media Type: Audio (0x0)
… 0000 = RFA: 0x0
Media Codec Audio Type: non-A2DP (0xff)
Vendor ID: APT Ltd. (0x0000004f)
Codec: aptX (0x0001)
1…… = Sampling Frequency 16000 Hz: True
.1…… = Sampling Frequency 32000 Hz: True
..1.… = Sampling Frequency 44100 Hz: True
...1… = Sampling Frequency 48000 Hz: True
… 0… = Channel Mode Mono: False
… .0… = Channel Mode Dual Channel: False
… ..1. = Channel Mode Stereo: True
… ...0 = Channel Mode Joint Stereo: False
Service: Content Protection — SCMS-T
Service Category: Content Protection (0x04)
Length of Service Category: 0x02
Type: SCMS-T (0x0002)
ShenZhen_3d:ea:1d (CSR8645) AVDTP 27 Rcvd ResponseAccept - GetCapabilities - Audio MPEG-2,4 AAC
Frame 474: 27 bytes on wire (216 bits), 27 bytes captured (216 bits)
Encapsulation type: Bluetooth H4 with linux header (99)
Arrival Time: Mar 14, 2019 22:17:58.001944000 Russia TZ 2 Standard Time
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1552591078.001944000 seconds
[Time delta from previous captured frame: 0.000546000 seconds]
[Time delta from previous displayed frame: 0.000546000 seconds]
[Time since reference or first frame: 108.924619000 seconds]
Frame Number: 474
Frame Length: 27 bytes (216 bits)
Capture Length: 27 bytes (216 bits)
[Frame is marked: False]
[Frame is ignored: False]
Point-to-Point Direction: Received (1)
[Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btavdtp]
Bluetooth
[Source: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Destination: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
Bluetooth HCI H4
[Direction: Rcvd (0x01)]
HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
… 0000 0000 0010 = Connection Handle: 0x002
..10……… = PB Flag: First Automatically Flushable Packet (2)
00………… = BC Flag: Point-To-Point (0)
Data Total Length: 22
Data
[Connect in frame: 306]
[Disconnect in frame: 37880]
[Source BD_ADDR: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Source Device Name: CSR8645]
[Source Role: Slave (2)]
[Destination BD_ADDR: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Destination Device Name: Galaxy Tab S2]
[Destination Role: Master (1)]
[Last Role Change in Frame: 304]
[Current Mode: Active Mode (0)]
[Last Mode Change in Frame: 306]
Bluetooth L2CAP Protocol
Length: 18
CID: Dynamically Allocated Channel (0x0043)
[Connect in frame: 434]
[Disconnect in frame: 37856]
[Service: Audio Sink (0x110b)]
[PSM: AVDTP (0x0019)]
Bluetooth AVDTP Protocol
Signal: GetCapabilities (ResponseAccept)
0010… = Transaction: 0x2
… 00… = Packet Type: Single (0x0)
… ..10 = Message Type: ResponseAccept (0x2)
00…… = RFA: 0x0
..00 0010 = Signal: GetCapabilities (0x02)
Capabilities
Service: Media Transport
Service Category: Media Transport (0x01)
Length of Service Category: 0x00
Service: Media Codec — Audio MPEG-2,4 AAC
Service Category: Media Codec (0x07)
Length of Service Category: 0x08
0000… = Media Type: Audio (0x0)
… 0000 = RFA: 0x0
Media Codec Audio Type: MPEG-2,4 AAC (0x02)
1…… = MPEG2 AAC LC: True
.1…… = MPEG4 AAC LC: True
..0.… = MPEG4 AAC LTP: False
...0… = MPEG4 AAC Scalable: False
… 0000 = RFA: 0x0
1…… = Sampling Frequency 8000 Hz: True
.1…… = Sampling Frequency 11025 Hz: True
..1.… = Sampling Frequency 12000 Hz: True
...1… = Sampling Frequency 16000 Hz: True
… 1… = Sampling Frequency 22050 Hz: True
… .1… = Sampling Frequency 24000 Hz: True
… ..1. = Sampling Frequency 32000 Hz: True
… ...1 = Sampling Frequency 44100 Hz: True
1…… = Sampling Frequency 48000 Hz: True
.0…… = Sampling Frequency 64000 Hz: False
..0.… = Sampling Frequency 88200 Hz: False
...0… = Sampling Frequency 96000 Hz: False
… 1… = Channels 1: True
… .1… = Channels 2: True
… ..00 = RFA: 0x0
1……………… = VBR Supported: True
.000 0100 1110 0010 0000 0000 = Bit Rate: 0x04e200
Service: Content Protection — SCMS-T
Service Category: Content Protection (0x04)
Length of Service Category: 0x02
Type: SCMS-T (0x0002)

ShenZhen_3d:ea:1d (CSR8645) AVDTP 25 Rcvd ResponseAccept - GetCapabilities - Audio SBC (16000 32000 44100 48000 | Mono DualChannel Stereo JointStereo | block: 4 8 12 16 | subbands: 4 8 | allocation: SNR Loudness | bitpool: 2..53)
Frame 480: 25 bytes on wire (200 bits), 25 bytes captured (200 bits)
Encapsulation type: Bluetooth H4 with linux header (99)
Arrival Time: Mar 14, 2019 22:17:58.009863000 Russia TZ 2 Standard Time
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1552591078.009863000 seconds
[Time delta from previous captured frame: 0.000366000 seconds]
[Time delta from previous displayed frame: 0.000366000 seconds]
[Time since reference or first frame: 108.932538000 seconds]
Frame Number: 480
Frame Length: 25 bytes (200 bits)
Capture Length: 25 bytes (200 bits)
[Frame is marked: False]
[Frame is ignored: False]
Point-to-Point Direction: Received (1)
[Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btavdtp]
Bluetooth
[Source: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Destination: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
Bluetooth HCI H4
[Direction: Rcvd (0x01)]
HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
… 0000 0000 0010 = Connection Handle: 0x002
..10……… = PB Flag: First Automatically Flushable Packet (2)
00………… = BC Flag: Point-To-Point (0)
Data Total Length: 20
Data
[Connect in frame: 306]
[Disconnect in frame: 37880]
[Source BD_ADDR: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Source Device Name: CSR8645]
[Source Role: Slave (2)]
[Destination BD_ADDR: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Destination Device Name: Galaxy Tab S2]
[Destination Role: Master (1)]
[Last Role Change in Frame: 304]
[Current Mode: Active Mode (0)]
[Last Mode Change in Frame: 306]
Bluetooth L2CAP Protocol
Length: 16
CID: Dynamically Allocated Channel (0x0043)
[Connect in frame: 434]
[Disconnect in frame: 37856]
[Service: Audio Sink (0x110b)]
[PSM: AVDTP (0x0019)]
Bluetooth AVDTP Protocol
Signal: GetCapabilities (ResponseAccept)
0011… = Transaction: 0x3
… 00… = Packet Type: Single (0x0)
… ..10 = Message Type: ResponseAccept (0x2)
00…… = RFA: 0x0
..00 0010 = Signal: GetCapabilities (0x02)
Capabilities
Service: Media Transport
Service Category: Media Transport (0x01)
Length of Service Category: 0x00
Service: Media Codec — Audio SBC (16000 32000 44100 48000 | Mono DualChannel Stereo JointStereo | block: 4 8 12 16 | subbands: 4 8 | allocation: SNR Loudness | bitpool: 2..53)
Service Category: Media Codec (0x07)
Length of Service Category: 0x06
0000… = Media Type: Audio (0x0)
… 0000 = RFA: 0x0
Media Codec Audio Type: SBC (0x00)
1…… = Sampling Frequency 16000 Hz: True
.1…… = Sampling Frequency 32000 Hz: True
..1.… = Sampling Frequency 44100 Hz: True
...1… = Sampling Frequency 48000 Hz: True
… 1… = Channel Mode Mono: True
… .1… = Channel Mode Dual Channel: True
… ..1. = Channel Mode Stereo: True
… ...1 = Channel Mode Joint Stereo: True
1…… = Block Length 4: True
.1…… = Block Length 8: True
..1.… = Block Length 12: True
...1… = Block Length 16: True
… 1… = Subbands 4: True
… .1… = Subbands 8: True
… ..1. = Allocation Method SNR: True
… ...1 = Allocation Method Loudness: True
Minimum Bitpool: 2
Maximum Bitpool: 53
Service: Content Protection — SCMS-T
Service Category: Content Protection (0x04)
Length of Service Category: 0x02
Type: SCMS-T (0x0002)

ShenZhen_3d:ea:1d (CSR8645) SDP 30 Rcvd Service Search Attribute Request : A/V Remote Control Target: [Bluetooth Profile Descriptor List 0x0009] [(AVRCP) Supported Features 0x0311]
Frame 544: 30 bytes on wire (240 bits), 30 bytes captured (240 bits)
Encapsulation type: Bluetooth H4 with linux header (99)
Arrival Time: Mar 14, 2019 22:17:59.997304000 Russia TZ 2 Standard Time
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1552591079.997304000 seconds
[Time delta from previous captured frame: 0.000761000 seconds]
[Time delta from previous displayed frame: 0.000761000 seconds]
[Time since reference or first frame: 110.919979000 seconds]
Frame Number: 544
Frame Length: 30 bytes (240 bits)
Capture Length: 30 bytes (240 bits)
[Frame is marked: False]
[Frame is ignored: False]
Point-to-Point Direction: Received (1)
[Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btsdp]
Bluetooth
[Source: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Destination: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
Bluetooth HCI H4
[Direction: Rcvd (0x01)]
HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
… 0000 0000 0010 = Connection Handle: 0x002
..10……… = PB Flag: First Automatically Flushable Packet (2)
00………… = BC Flag: Point-To-Point (0)
Data Total Length: 25
Data
[Connect in frame: 306]
[Disconnect in frame: 37880]
[Source BD_ADDR: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Source Device Name: CSR8645]
[Source Role: Slave (2)]
[Destination BD_ADDR: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Destination Device Name: Galaxy Tab S2]
[Destination Role: Master (1)]
[Last Role Change in Frame: 304]
[Current Mode: Active Mode (0)]
[Last Mode Change in Frame: 306]
Bluetooth L2CAP Protocol
Length: 21
CID: Dynamically Allocated Channel (0x0046)
[Connect in frame: 525]
[Disconnect in frame: 551]
[PSM: SDP (0x0001)]
Bluetooth SDP Protocol
PDU: Service Search Attribute Request (0x06)
Transaction Id: 0x0001
Parameter Length: 16
Service Search Pattern: A/V Remote Control Target
Data Element: Sequence uint8 3 bytes
Maximum Attribute Byte Count: 38
Attribute ID List
Continuation State: no (00)

ShenZhen_3d:ea:1d (CSR8645) SDP 30 Rcvd Service Search Attribute Request : A/V Remote Control Target: [Bluetooth Profile Descriptor List 0x0009] [(AVRCP) Supported Features 0x0311]
Frame 576: 30 bytes on wire (240 bits), 30 bytes captured (240 bits)
Encapsulation type: Bluetooth H4 with linux header (99)
Arrival Time: Mar 14, 2019 22:18:00.028092000 Russia TZ 2 Standard Time
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1552591080.028092000 seconds
[Time delta from previous captured frame: 0.000269000 seconds]
[Time delta from previous displayed frame: 0.000269000 seconds]
[Time since reference or first frame: 110.950767000 seconds]
Frame Number: 576
Frame Length: 30 bytes (240 bits)
Capture Length: 30 bytes (240 bits)
[Frame is marked: False]
[Frame is ignored: False]
Point-to-Point Direction: Received (1)
[Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btsdp]
Bluetooth
[Source: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Destination: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
Bluetooth HCI H4
[Direction: Rcvd (0x01)]
HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
… 0000 0000 0010 = Connection Handle: 0x002
..10……… = PB Flag: First Automatically Flushable Packet (2)
00………… = BC Flag: Point-To-Point (0)
Data Total Length: 25
Data
[Connect in frame: 306]
[Disconnect in frame: 37880]
[Source BD_ADDR: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Source Device Name: CSR8645]
[Source Role: Slave (2)]
[Destination BD_ADDR: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Destination Device Name: Galaxy Tab S2]
[Destination Role: Master (1)]
[Last Role Change in Frame: 304]
[Current Mode: Active Mode (0)]
[Last Mode Change in Frame: 306]
Bluetooth L2CAP Protocol
Length: 21
CID: Dynamically Allocated Channel (0x0048)
[Connect in frame: 561]
[Disconnect in frame: 583]
[PSM: SDP (0x0001)]
Bluetooth SDP Protocol
PDU: Service Search Attribute Request (0x06)
Transaction Id: 0x0001
Parameter Length: 16
Service Search Pattern: A/V Remote Control Target
Data Element: Sequence uint8 3 bytes
Maximum Attribute Byte Count: 38
Attribute ID List
Continuation State: no (00)

С модулем работал по протоколу:
ShenZhen_3d:ea:1d (CSR8645) AVDTP 26 Sent Command - SetConfiguration - ACP SEID [5 - Audio Sink] - INT SEID [2 - Audio Sink] - Audio non-A2DP (aptX - 44100, Stereo)
Frame 481: 26 bytes on wire (208 bits), 26 bytes captured (208 bits)
Encapsulation type: Bluetooth H4 with linux header (99)
Arrival Time: Mar 14, 2019 22:17:58.010378000 Russia TZ 2 Standard Time
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1552591078.010378000 seconds
[Time delta from previous captured frame: 0.000515000 seconds]
[Time delta from previous displayed frame: 0.000515000 seconds]
[Time since reference or first frame: 108.933053000 seconds]
Frame Number: 481
Frame Length: 26 bytes (208 bits)
Capture Length: 26 bytes (208 bits)
[Frame is marked: False]
[Frame is ignored: False]
Point-to-Point Direction: Sent (0)
[Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btavdtp]
Bluetooth
[Source: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Destination: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
Bluetooth HCI H4
[Direction: Sent (0x00)]
HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
… 0000 0000 0010 = Connection Handle: 0x002
..10……… = PB Flag: First Automatically Flushable Packet (2)
00………… = BC Flag: Point-To-Point (0)
Data Total Length: 21
Data
[Connect in frame: 306]
[Disconnect in frame: 37880]
[Source BD_ADDR: SamsungE_2a:65:c9 (ac:af:b9:2a:65:c9)]
[Source Device Name: Galaxy Tab S2]
[Source Role: Master (1)]
[Destination BD_ADDR: ShenZhen_3d:ea:1d (fc:58:fa:3d:ea:1d)]
[Destination Device Name: CSR8645]
[Destination Role: Slave (2)]
[Last Role Change in Frame: 304]
[Current Mode: Active Mode (0)]
[Last Mode Change in Frame: 306]
Bluetooth L2CAP Protocol
Length: 17
CID: Dynamically Allocated Channel (0x1581)
[Connect in frame: 434]
[Disconnect in frame: 37856]
[Service: Audio Sink (0x110b)]
[PSM: AVDTP (0x0019)]
Bluetooth AVDTP Protocol
Signal: SetConfiguration (Command)
0100… = Transaction: 0x4
… 00… = Packet Type: Single (0x0)
… ..00 = Message Type: Command (0x0)
00…… = RFA: 0x0
..00 0011 = Signal: SetConfiguration (0x03)
ACP SEID [5 — Audio Sink]
0001 01… = ACP SEID: 5
… ..00 = RFA: 0x0
INT SEID [2 — Audio Sink]
0000 10… = INT SEID: 2
… ..00 = RFA: 0x0
Capabilities
Service: Media Transport
Service Category: Media Transport (0x01)
Length of Service Category: 0x00
Service: Media Codec — Audio non-A2DP (aptX — 44100, Stereo)
Service Category: Media Codec (0x07)
Length of Service Category: 0x09
0000… = Media Type: Audio (0x0)
… 0000 = RFA: 0x0
Media Codec Audio Type: non-A2DP (0xff)
Vendor ID: APT Ltd. (0x0000004f)
Codec: aptX (0x0001)
0…… = Sampling Frequency 16000 Hz: False
.0…… = Sampling Frequency 32000 Hz: False
..1.… = Sampling Frequency 44100 Hz: True
...0… = Sampling Frequency 48000 Hz: False
… 0… = Channel Mode Mono: False
… .0… = Channel Mode Dual Channel: False
… ..1. = Channel Mode Stereo: True
… ...0 = Channel Mode Joint Stereo: False

• Можно поступить проще — зайти на сайт btcodecs.valdikss.org.ru, загрузить свой лог-файл и увидеть краткую информацию по поддерживаемым стандартам и используемому профилю для воспроизведения звука.
  
  
  Информация из моего лога:
  
  
  

  Connection:
  

  ac:af:b9:2a:65:c9 (Galaxy Tab S2) → fc:58:fa:3d:ea:1d (CSR8645)
  
  Supported codecs:
  Audio non-A2DP (aptX — 16000 32000 44100 48000, Stereo)
  Audio MPEG-2,4 AAC
  Audio SBC (16000 32000 44100 48000 | Mono DualChannel Stereo JointStereo | block: 4 8 12 16 | subbands: 4 8 | allocation: SNR Loudness | bitpool: 2..53)
  
  Used for audio:
  Audio non-A2DP (aptX — 44100, Stereo)