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參數(shù)資料
| 型號： | 93526374518 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | FM, AUDIO DEMODULATOR, PQFP44 |
| 封裝： | PLASTIC, SOT-205, QFP-44 |
| 文件頁數(shù)： | 67/71頁 |
| 文件大小： | 269K |
| 代理商： | 93526374518 |
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2000 Aug 04
7
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
5
PINNING
SYMBOL
PIN
DESCRIPTION
SDIP42
QFP44
EXTIR
1
39
external audio input right channel
EXTIL
2
40
external audio input left channel
Vref2
3
41
analog reference voltage for DAC and operational ampliers
P2
4
42
second general purpose I/O pin
OUTM
5
43
analog output mono
VSSA4
6
44
analog ground supply 4 for analog back-end circuitry
OUTL
7
1
analog output left
OUTR
8
2
analog output right
VDDA1
9
3
analog supply voltage 1; back-end circuitry 5 V
VSSA1
10
4
analog ground supply 1; back-end circuitry
VSSD1
11
5
digital ground supply 1; core circuitry
VDDD1
12
6
digital supply voltage 1; core voltage regulator circuitry
VSSD2
13
7
digital ground supply 2; core circuitry
n.c.
8
not connected
TP2
14
9
additional test pin 2; connected to VSSD for normal operation
NICAM
15
10
serial NICAM data output (at 728 kHz)
TP1
16
11
additional test pin 1; connected to VSSD for normal operation
PCLK
17
12
NICAM clock output (at 728 kHz)
ADDR1
18
13
rst I2C-bus slave address modier input
XTALO
19
14
crystal oscillator output
XTALI
20
15
crystal oscillator input
TP3
16
additional test pin 3; connected to VSSD for normal operation
TEST2
21
17
test pin 2; connected to VSSD for normal operation
Iref
22
18
resistor for reference current generation; front-end circuitry
ADDR2
23
19
second I2C-bus slave address modier input
VSSA2
24
20
analog ground supply 2; analog front-end circuitry
VDEC
25
21
analog front-end circuitry supply voltage decoupling
TEST1
26
22
test pin 1; connected to VSSD for normal operation
SIF2
27
23
sound IF input 2
Vref1
28
24
reference voltage; for analog front-end circuitry
SIF1
29
25
sound IF input 1
CRESET
30
26
capacitor for Power-on reset
VSSA3
31
27
digital ground supply 3; front-end circuitry
VDDA3
32
28
analog front-end circuitry regulator supply voltage 3 (5 V)
SCL
33
29
I2C-bus serial clock input
SDA
34
30
I2C-bus serial data input/output
SDO
35
31
I2S-bus serial data output
WS
36
32
I2S-bus word select input/output
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