Harman Kardon AVR 171 (serv.man3) Service Manual ▷ View online
Harman Kardon
AVR 171 Service Manual
Page 109 of 174
Product Specification
Spec-BM840-V1.1 Page 1 of 7 www.sunitec.com.tw
®
Features:
z
Bluetooth Spec 4.0 Compliant
z
Class 2 type Output Power
z
Support A2DP 1.2,AVRCP V1.4,HSP 1.2 and
HFP 1.6 Profiles
z
Secure simple pairing, CSR's proximity pairing
and CSR's proximity connection
z
HFP v1.6 includes wideband speech and mSBC
Codec.
z
CSR's latest CVC technology audio enhancement
z
Multipoint connection to 2 phones for voice and
Music
z
Support for multi-language programmable audio
prompts
z
OS battery status monitoring and smart apps
z
Voice recognition support for answering a call,
enables true hands-free use
z
Wired audio support (USB and analogue)
z
SBC, MP3, and AAC decoder support
z
5-band fully configurable EQ
z
Integrated dual switch-mode regulators, linear
regulators and battery charger
z
Support for 802.11 Co-existence
z
Size: 15mm x 11mm x 2.35mm
z
Weight:
0.8g
System Architecture
BM840 Stereo Solution Module
CSR
8640A04
April 2012
Product Description:
The BM840 is a Class 2 Bluetooth sub-system
using CSR8640 chipset from leading Bluetooth
chipset supplier Cambridge Silicon Radio.
It is a single-chip radio and baseband IC for
Bluetooth 2.4GHz systems.The integrated
peripherals reduce the number of external
components required, including no
requirement for external codec, battery charger,
SMPS, LDOs, balun or external program
memory, ensuring minimum production costs.
using CSR8640 chipset from leading Bluetooth
chipset supplier Cambridge Silicon Radio.
It is a single-chip radio and baseband IC for
Bluetooth 2.4GHz systems.The integrated
peripherals reduce the number of external
components required, including no
requirement for external codec, battery charger,
SMPS, LDOs, balun or external program
memory, ensuring minimum production costs.
Applications:
• Stereo headsets and Headphones
• Wireless
speaker
Specifications:
Operating Frequency Band
2.4GHz ~ 2.48GHz unlicensed ISM band
Bluetooth Specification
V4.0
Output Power Class
Class 2
Operating Voltage
3.3V
Host Interface
USB 1.1
Audio Interface
PCM, I2S, Analogue and USB audio
Dimension
15mm (L) x 11(W) mm x 2.35mm (H)
Specifications are subject to change without prior notice
Qualified
Harman Kardon
AVR 171 Service Manual
Page 110 of 174
Product Specification
Spec-BM840-V1.1 Page 3 of 7 www.sunitec.com.tw
®
Pin Configurations
PIN NO.
NAME
TYPE
FUNCTION
RE-MARK
1 GND GND
Ground
2 GND GND
Ground
3
AIO0
Bi-directional
Analogue programmable input / output line
4 PIO12 Bi-directional Programmable Input/Output Line
Alternative function:
■ QSPI_FLASH_CS#: serial quad I/O flash chip select
■ I2C_WP: I²C bus memory write protect line
■ QSPI_FLASH_CS#: serial quad I/O flash chip select
■ I2C_WP: I²C bus memory write protect line
5 PIO14 Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_RX: UART data input
■ UART_RX: UART data input
6 PIO11 Bi-directional Programmable Input/Output Line
Alternative function:
■ QSPI_IO[0]: serial quad I/O flash data bit 0
■ I2C_SDA: I²C serial data line
■ QSPI_IO[0]: serial quad I/O flash data bit 0
■ I2C_SDA: I²C serial data line
7 PIO17 Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_CTS: UART clear to send, active low
■ UART_CTS: UART clear to send, active low
8 PIO10 Bi-directional Programmable Input/Output Line
Alternative function:
■ QSPI_FLASH_CLK: serial quad I/O flash clock
■ I2C_SCL: I²C serial clock line
■ QSPI_FLASH_CLK: serial quad I/O flash clock
■ I2C_SCL: I²C serial clock line
9 PIO15 Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_TX: UART data output
■ UART_TX: UART data output
10 PIO16 Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_RTS: UART request to send, active low
■ UART_RTS: UART request to send, active low
11 PIO13 Bi-directional Programmable Input/Output Line
Alternative function:
■ QSPI_IO[1]: serial quad I/O flash data bit 1
■ QSPI_IO[1]: serial quad I/O flash data bit 1
12 GND
GND
Ground
13 PIO2
Bi-directional Programmable Input/Output Line
Alternative functions:
■ SPI_MOSI: SPI data input
■ PCM1_IN: PCM1 synchronous data input
■ SPI_MOSI: SPI data input
■ PCM1_IN: PCM1 synchronous data input
14 PIO5
Bi-directional Programmable Input/Output Line
Alternative functions:
■ SPI_CLK: SPI clock
■ PCM1_CLK: PCM1 synchronous data clock
■ SPI_CLK: SPI clock
■ PCM1_CLK: PCM1 synchronous data clock
15 PIO4
Bi-directional Programmable Input/Output Line
Alternative functions:
■ SPI_CS#: chip select for SPI, active low
■ PCM1_SYNC: PCM1 synchronous data sync
■ SPI_CS#: chip select for SPI, active low
■ PCM1_SYNC: PCM1 synchronous data sync
16 PIO3
Bi-directional Programmable Input/Output Line
Alternative functions:
■ SPI_MISO: SPI data output
■ PCM1_OUT: PCM1 synchronous data output
■ SPI_MISO: SPI data output
■ PCM1_OUT: PCM1 synchronous data output
17 GND
GND
Ground
18 LED1
Bi-directional LED
driver.
Alternative function: programmable output PIO[30].
19 LED0
Bi-directional LED
driver.
Alternative function: programmable output PIO[29].
20 RST#
Input
with
strong
pull-up
Reset if low. Pull low for minimum 5ms to cause a
reset.
reset.
21 SPI_PCM#
Bidirectional
with
weak
pull-down
pull-down
SPI/PCM select input:
■ 0 = PCM/PIO interface
■ 1 = SPI
■ 0 = PCM/PIO interface
■ 1 = SPI
22
VREGENABLE
CMOS Input
Regulator enable input
Can also be sensed as an input.
Regulator enable and multifunction button. A high input
(tolerant to VBAT) enables the on-chip regulators,
which can then be latched on internally and the button
used as a multifunction input
Can also be sensed as an input.
Regulator enable and multifunction button. A high input
(tolerant to VBAT) enables the on-chip regulators,
which can then be latched on internally and the button
used as a multifunction input
23 GND
GND
Ground
24
VBUS
Power Input
Charger input.
Harman Kardon
AVR 171 Service Manual
Page 111 of 174
Product Specification
Spec-BM840-V1.1 Page 4 of 7 www.sunitec.com.tw
®
Typically connected to VBUS (USB supply) as Section
12 shows.
12 shows.
25
CHG_EXT
External battery charger control.
External battery charger transistor base control when
using external charger boost. Otherwise leave
unconnected.
External battery charger transistor base control when
using external charger boost. Otherwise leave
unconnected.
26
VBAT_SENSE
Battery charger sense input.
Connect directly to the battery positive pin.
Connect directly to the battery positive pin.
27
VBAT
Power IN
Battery positive terminal.
28 GND
GND
Ground
29
1V8_SMPS
Power out
Serial Peripheral Interface Clock
30
VDD_PADS
Power IN
Positive supply input for input/output ports
31 PIO9
Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_CTS: UART clear to send, active low
■ UART_CTS: UART clear to send, active low
32 PIO0
Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_RX: UART data input
■ UART_RX: UART data input
33 PIO6
Bi-directional Programmable Input/Output Line
34 PIO18 Bi-directional Programmable Input/Output Line
35 PIO19 Bi-directional Programmable Input/Output Line
36 GND
GND
Ground
37
USB_N
Bi-directional
USB data minus
38
USB_P
Bi-directional
USB data plus with selectable internal 1.5kΩ pull-up
resistor
resistor
39 PIO7
Bi-directional Programmable Input/Output Line
40 PIO1
Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_TX: UART data output
■ UART_TX: UART data output
41 PIO8
Bi-directional Programmable Input/Output Line
Alternative functions:
■ UART_RTS: UART request to
send, active low
■ UART_RTS: UART request to
send, active low
42 PIO21 Bi-directional Programmable Input/Output Line
43 PIO20 Bi-directional Programmable Input/Output Line
44 LED2
Bi-directional LED
driver.
Alternative function: programmable output PIO[31]
45 GND
GND
Ground
46
MIC_BIAS
Analogue out
Microphone bias
47 MIC_RN Analogue
in Microphone
input negative, channel A
48 MIC_RP Analogue
in Microphone input positive, channel A
49 MIC_LN Analogue
in Microphone input negative, channel B
50 MIC_LP Analogue
in Microphone input positive, channel B
51
AGND
Analogue
Ground connection for audio and audio driver.
52 SPK_RN Analogue
out Speaker
A output negative, right
53
SPK_RP
Analogue out
Speaker A output positive, right
54
SPK_LN
Analogue out
Speaker A output negative, left
55 SPK_LP Analogue
out Speaker
A output positive, left
56 GND
GND
Ground
57 RF_IN GND
Bluetooth
50Ω transmitter output /receiver input
58 GND
GND
Ground
Harman Kardon
AVR 171 Service Manual
Page 112 of 174
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