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PDF WS9621NLME Data sheet ( Hoja de datos )
| Número de pieza | WS9621NLME | |
| Descripción | Bluetooth Headset IC | |
| Fabricantes | Vimicro | |
| Logotipo |  |
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Bluetooth Headset IC - WS9621NLME
Datasheet
Version: V1.4, May 2013
110/F 530 Tower, QingYuan Road, TaiHu International Technology Park,
WuXi New District, 214135, China
Tel: 86-510-81816000
Fax: 86- 510-81816935
Web: www.vimicro.com
1 page  
TYPICAL APPLICATION
WS9621NLME
ANT_3216
M1 1
2
RFTEST
2
1
M3 1
2
C5 1 C7 1
4.7p 2 1µF 2
C66 1
4.7p 2
3
2
4
1
8 VREF
9 MBIAS
10 MICLP
11 MICLN
12 MICRP
13 MICRN
5 HPOUTN
RF
6 HPOUTP
14 VCOM
45 VBAT
43 GNDS
D3
IN5819(SMD)
C49 1
47µF 2
C50 1
47µF 2 DVDD33
DVDD12
1 C17
2 1µF
44 SWS
48 FBS
47 VCHG
3 PWR
46 VOL1
1
VOL2
49
GND
LDO
C18 1
1µF 2
2
R19
2.5kΩ
1 C53
1 2 1µF
PROM
WS9621NLME
Power
C56 1 1 C20
1µF 2 2 1µF
1 C56
2 1µF
1 C58
2 1µF
Crystal
GPIO9 31
GPIO8 30
GPIO7 24
1
1
GPIO9
GPIO8
1 GPIO7
GPIO9
GPIO8
GPIO7
GPIO6 21
GPIO5 20
GPIO4 32
GPIO3 18
GPIO2 17
GPIO1 16
GPIO0 15
GPIO6
GPIO5
1
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
VDD_ADDA 37
VDD_REG2 41 DCDC15
1 C64
PLL VDD_DIG 42
1 C62
2 1µF
1 C60 2 2.2µF
2 1µF
1 C6
2 1µF
Figure 1 WS9621NLME Typical Application
Datasheet (V1.4)
Copyright © Vimicro_wx, Inc. 1999-2013
5
5 Page 
WS9621NLME
RF Interface
Port RFP and RFN are the RF I/O ports and need to be bonded out. The two RF pins are connected to on-board
matching network which should be placed close to the chip. The associated on–board transmission line routing
should have 50Ω impedance matching.
Audio Interface
WS9621NLME supports Dual Microphone Audio inputs. The MICLP port is microphone left channel inputs, the
MICLN port is differential inputs, the MICRP port is microphone right channel inputs and the MICRN port is
differential inputs.
The stereo Audio output ports are HPOUTL and HPOUTR, while HPOUTL is headphone left channel output and
HPOUTR is headphone right channel output.
UART Interface
The UART ports are shared with GIPO [3:0]. Those ports are used as UART by configuring related register by SW.
General Description
The UART (Universal Asynchronous Receiver/Transmitter) core provides serial communication capabilities, which
allow communicating with external devices, like another computer using a serial cable and RS232 protocol. The
UART module performs all of the normal operations associated with start-stop asynchronous communication.
Serial data is transmitted and received at standard bit rates using the internal baud rate generator. This core is
designed to be maximally compatible with the industry standard National Semiconductors‟ 16550A device (The
Modem interface and feature is not included).
Followings are the main features of UART IP core:
Full-duplex operation
Robust receiver data sampling with noise filtering
32-byte FIFO for receive, 32-byte FIFO for transmit
7-bit or 8-bit operation with optional parity
Break generation and detection
Baud rate generator
Support up to 3Mbps.baud rate with 16x sample clock
Integer and fractional divisor for baud rate.
Hardware flow control
Loop-back mode for self test
Function Description
Serial Operation
The UART module has one operation mode --- non-return to zero (NRZ).
The NRZ mode is primarily associated with RS-232. Each character is transmitted as a frame delimited by a start
bit at the beginning and a stop bit at the end. Data bits are transmitted least significant bit first, each bit occupies a
period of time equal to 1 full bit. If parity is used, then the parity bit is transmitted after the most significant bit.
Following is the waveform in NRZ mode.
Datasheet (V1.4)
NRZ mode transmits an ASCII “A” Character with Odd
Figure 5 Waveform of UART
Copyright © Vimicro_wx, Inc. 1999-2013
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet WS9621NLME.PDF ] | |
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