TDA8044 查看數據表（PDF） - Philips Electronics
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TDA8044 Datasheet PDF : 20 Pages
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Philips Semiconductors
Satellite demodulator and decoder
Product specification
TDA8044
SYMBOL
PIN
I/O
DESCRIPTION
VDDD5
VSSD8
VDDD6
VDDD7
PDO7
41
−
digital supply voltage 5
42
−
digital ground 8
43
−
digital supply voltage 6
44
−
digital supply voltage 7
45
O parallel data output (bit 7)
n.c.
46
−
not connected
VSSD9
PDOERR
47
−
digital ground 9
48
0
transport error indicator
PDOVAL
49
O data valid indicator
PDOSYNC
50
0
transport packet synchronization signal
VSSD10
SCL
SDA
51
−
digital ground 10
52
I
serial clock input of I2C-bus
53
I/O serial data of I2C-bus
INT
54
O interrupt output (active LOW)
A0
55
I
I2C-bus hardware address
RSLOCK
56
O Reed-Solomon lock indicator
VLOCK
57
O Viterbi lock indicator
DLOCK
58
O demodulator lock indicator
VDDD8
VDDD9
TEST
59
−
digital supply voltage 8
60
−
digital supply voltage 9
61
I
test pin (normally connected to ground)
TRST
62
I
BST optional asynchronous reset (normally connected to ground)
TCK
SCLT
SDAT
63
I
BST dedicated test clock (normally connected to ground)
64
I
serial clock of I2C-bus loop-through
65
I/O serial data of I2C-bus loop-through
VDDD10
VSSD11
VSSD12
TMS
66
−
digital supply voltage 10
67
−
digital ground 11
68
−
digital ground 12
69
I
BST input control signal (normally connected to ground)
TDO
70
O BST serial test data output
TDI
71
I
BST serial test data in (normally connected to ground)
VDDD11
VSSD13
VSSD(AD)
VDDD(AD)
Vref(B)
VSSA1
QA
72
−
digital supply voltage 11
73
−
digital ground 13
74
−
digital ground ADC
75
−
digital supply ADC
76
O bottom reference voltage for ADC
77
−
analog ground 1
78
−
analog input Q
Vref(Q)
IA
79
O AGC decoupling - Q path
80
I
analog input I
VSSA2
81
−
analog ground 2
2000 Feb 21
6
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