TDA9874AHB View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
'TDA9874AHB' PDF : 69 Pages View PDF
Philips Semiconductors
Digital TV sound demodulator/decoder
Product specification
TDA9874A
5 PINNING
SYMBOL
EXTIR
EXTIL
Vref2
P2
OUTM
VSSA4
OUTL
OUTR
VDDA1
VSSA1
VSSD1
VDDD1
VSSD2
n.c.
TP2
NICAM
TP1
PCLK
ADDR1
XTALO
XTALI
TP3
TEST2
Iref
ADDR2
VSSA2
VDEC
TEST1
SIF2
Vref1
SIF1
CRESET
VSSA3
VDDA3
SCL
SDA
SDO
WS
PIN
SDIP42
QFP44
1
39
2
40
3
41
4
42
5
43
6
44
7
1
8
2
9
3
10
4
11
5
12
6
13
7
−
8
14
9
15
10
16
11
17
12
18
13
19
14
20
15
−
16
21
17
22
18
23
19
24
20
25
21
26
22
27
23
28
24
29
25
30
26
31
27
32
28
33
29
34
30
35
31
36
32
DESCRIPTION
external audio input right channel
external audio input left channel
analog reference voltage for DAC and operational amplifiers
second general purpose I/O pin
analog output mono
analog ground supply 4 for analog back-end circuitry
analog output left
analog output right
analog supply voltage 1; back-end circuitry 5 V
analog ground supply 1; back-end circuitry
digital ground supply 1; core circuitry
digital supply voltage 1; core voltage regulator circuitry
digital ground supply 2; core circuitry
not connected
additional test pin 2; connected to VSSD for normal operation
serial NICAM data output (at 728 kHz)
additional test pin 1; connected to VSSD for normal operation
NICAM clock output (at 728 kHz)
first I2C-bus slave address modifier input
crystal oscillator output
crystal oscillator input
additional test pin 3; connected to VSSD for normal operation
test pin 2; connected to VSSD for normal operation
resistor for reference current generation; front-end circuitry
second I2C-bus slave address modifier input
analog ground supply 2; analog front-end circuitry
analog front-end circuitry supply voltage decoupling
test pin 1; connected to VSSD for normal operation
sound IF input 2
reference voltage; for analog front-end circuitry
sound IF input 1
capacitor for Power-on reset
digital ground supply 3; front-end circuitry
analog front-end circuitry regulator supply voltage 3 (5 V)
I2C-bus serial clock input
I2C-bus serial data input/output
I2S-bus serial data output
I2S-bus word select input/output
2000 Aug 04
7
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