参数资料
型号: 73M1903-IGV
厂商: TERIDIAN SEMICONDUCTOR CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP32
封装: TQFP-32
文件页数: 41/45页
文件大小: 449K
代理商: 73M1903-IGV
73M1903
Modem Analog Front End
DATA SHEET
Page: 5 of 45
2005 TERIDIAN Semiconductor Corporation
Rev 1.4
SIGNAL DESCRIPTION
The TERIDIAN 73M1903 modem AFE IC is available in a 32 pin TQFP or QFN package with same pin
out. The following table describes the function of each pin. There are two pairs of power supply pins,
VPA(analog) and VPD(digital). They should be separately decoupled from the supply source in order to
isolate digital noise from the analog circuits internal to the chip. Failure to adequately isolate and
decouple these supplies will compromise device performance.
PIN NAME
TYPE
PIN #
DESCRIPTION
VND
GND
1,22
Negative Digital Ground
VNA
GND
16
Negative Analog Ground
VPD
PWR
2,25
Positive Digital Supply
VPA
PWR
10
Positive Analog Supply
VPPLL
PWR
20
Positive PLL Supply, shared with VPD
VNPLL
PWR
17
Negative PLL Ground
RST
I
9
Master reset. When this pin is a logic 0 all registers are reset to
their default states; Weak-pulled high- default
OSCIN
I
19
Crystal oscillator input. When providing an external clock
source, drive OSCIN.
OSCOUT
O
18
Crystal oscillator circuit output pin.
GPIO(0-7)
I/O
3, 4, 5, 6,
23, 24,30,31
Software definable digital input/output pins.
VREF
O
13
Reference voltage pin (Reflects Vref)
RXAP
I
15
Receive analog positive input.
RXAN
I
14
Receive analog negative input.
TXAP
O
12
Transmit analog positive output
TXAN
O
11
Transmit analog negative output
SCLK
O
8
Serial interface clock. With SCLK continuous selected,
Frequency = 256*Fs ( =2.4576MHz for Fs=9.6kHz)
SDOUT
O
32
Serial data output (or input to the host).
SDIN
I
29
Serial data input (or output from the host)
FS
O
7
Frame synchronization. (Active Low)
TYPE
I
27
Type of frame sync. Open, weak-pulled high = early (mode1);
tied low = late (mode0)
SckMode
I
28
Controls the SCLK behavior after FS. Open, weak-pulled high
= SCLK Continuous; tied low = 32 clocks per R/W cycle.
Table 1: -32 TQFP and QFN Pin Description
相关PDF资料
PDF描述
73M1903-IM SPECIALTY CONSUMER CIRCUIT, QCC32
73M1903-IGV/F SPECIALTY CONSUMER CIRCUIT, PQFP32
73M1903-IGV SPECIALTY CONSUMER CIRCUIT, PQFP32
73M1903-IM SPECIALTY CONSUMER CIRCUIT, QCC32
73M1903-IM/F SPECIALTY CONSUMER CIRCUIT, PQCC32
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