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PDF WS9622NLME Data sheet ( Hoja de datos )
| Número de pieza | WS9622NLME | |
| Descripción | Bluetooth Headset IC | |
| Fabricantes | Vimicro | |
| Logotipo |  |
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Bluetooth Headset IC - WS9622NLME
Datasheet
Version: V1.0, January 2013
7F,Shangfu Building,Dengliang Road,Nanshan,Shenzhen, China
Tel : 86-755-86185999
Fax: 86-755-86038622
Web: www.db-tech.com.cn
1 page  
PIN CONFIGURATIONS
WS9622NLME
Figure 1 WS9622NLME Pin Assignment (Not to scale)
PIN DESCRIPTION
[Table 1] Pin Descriptions by Oder
ORDER PIN NAME DIR POWER
DESCRIPTION
1 VOL2
AIO AVDDBAT LDO2 (1.2V) output. Power supply of core of digital logic.
2 RS
AI AVDDBAT Set charging current.
3 PWR
4 VOL5
5 NC
AI AVDDBAT Power up reset, High level (BAT voltage) means button is turned on
AIO
AVDDBAT
LDO5 (3.3V)
domain).
output.
Power
supply
for
Audio
an
HP
(AVDD33
power
Not connected.
6 HPOUT
A,O AVDD33 Headphone PA output.
7 VSS
P AVDD33 Ground for Audio.
8 VREF
AIO AVDD33 Internal reference voltage output.
9 VCOM
10 MBIAS
AIO AVDD33 Common mode reference voltage.
A,O AVDD33 Microphone bias voltage output, tied 2.2µF capacitor to AVSS.
11 MICLP
A,I AVDD33 Microphone left channel input, positive end.
Datasheet (V1.0)
Copyright © Vimicro_wx, Inc. 1999-2013
5
5 Page 
WS9622NLME
UART External Connection for Bluetooth
The UART in WS9622NLME can be used to transport HCI (Host Controller Interface) packets for Bluetooth. The
HCI UART Transport Layer uses the following settings for RS232:
Baud rate
Number of data bits
Parity bit
Stop bit
Flow control
Flow-off response time
manufacturer-specific
8
no parity
1 stop bit
RTS/CTS (Hardware Flow Control)
manufacturer specific
The RS232 signals should be connected in a null-modem fashion.
The most expensive null modem cable is the null modem cable suitable for full handshaking. In this null modem
cable, seven wires are present. Only the ring indicator RI and carrier detect CD signal are not linked. The cable is
shown in the following figure. DTR and DSR are not used in UART of WS9622NLME.
Figure 5 Null Modem Cable Connection
Connector 1
2
3
4
5
6
7
8
Connector 2
3
2
6
5
4
8
7
Function
Rx Tx
Tx Rx
DTR
DSR
Signal ground
DSR
DTR
RTS
CTS
CTS
RTS
In CTS/RTS flow, The RTS output of device1 signals device2 that device1 is capable of receiving information. The
device2 will send the data out when the RTS signal of device1 is set valid. Also, the device1 will send the data out
when the RTS signal of device2 is set valid.
I2C Interface
WS9622NLME provides the two ports, PROM_SCL and PROM_SDA, for communication with EEPROM which
comply with I2C protocol.
I2C is a two-wire, bi-directional serial bus, which provides a simple and efficient method of data exchange between
devices. It is most suitable for applications requiring occasional communication over a short distance between
many devices. The I2C standard is a true multi-master bus including collision detection and arbitration that prevents
data corruption if two or more masters attempt to control the bus simultaneously.
Datasheet (V1.0)
Copyright © Vimicro_wx, Inc. 1999-2013
11
11 Page | ||
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