SAA7283 データシートの表示（PDF） - Philips Electronics
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SAA7283 Datasheet PDF : 36 Pages
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Philips Semiconductors
Terrestrial Digital Sound Decoder (TDSD3)
Preliminary specification
SAA7283
PINNING
SYMBOL
MUTE
DOBM
VDDA
VSSA
VRCA
EXTR
FMR
OPR
n.c.
VROA
VSSDAC
n.c.
OPL
FML
EXTL
PORM
PORA
REMVE
REMO
SEYE
SOFF
VSSF1
VCLK
VDDF1
VCONT
MIXREF
DQPSK
COFF
CEYE
PKDET
VROF
IREF
VRCF
VDDF2
VSSF2
n.c.
CLKLPF
PIN
SDIP52 QFP64(1)
DESCRIPTION
1
57
active LOW mute input; function defined by MUTEDEF (control bit in the
I2C-bus register)
2
59
digital audio interface output that can be 3-stated via I2C-bus
3
61
analog supply voltage for the audio channels
4
62
analog ground connection for the audio channels
5
63
internal audio reference voltage buffer (high-impedance node)
6
2
external analog input to the right audio channel
7
3
FM sound input to the right audio channel
8
4
analog output from the right audio channel
9 and 10 9 and 10 not connected; left open-circuit in application
11
7
internal audio reference voltage buffer output
12
8
quiet ground connection to DACs
13 and 14
−
not connected; left open-circuit in application
15
11
analog output from the left audio channel
16
12
FM sound input to the left audio channel
17
13
external analog input to the left audio channel
18
14
active LOW power-on reset mute input; mute cleared by setting silence bit
HIGH in I2C-bus (internal pull-up)
19
15
power-on reset audio select input (internal pull-up)
20
16
carrier loop-filter connection
21
17
carrier loop-filter output
22
21
sine channel eye pattern output for monitoring
23
22
sine channel offset compensator capacitor output
24
23
demodulator ground connection 1
25
24
carrier loop VCO clock output for monitoring
26
25
demodulator supply voltage 1
27
27
carrier loop VCO control voltage input
28
28
mixer voltage reference or input when using differential DQPSK signal
29
29
DQPSK input signal
30
30
cosine channel offset compensator capacitor output
31
31
cosine channel eye pattern output for monitoring
32
34
AGC peak detector storage capacitor output
33
35
internal demodulator reference voltage buffered output
34
36
internal demodulator reference current output
35
37
internal demodulator reference voltage unbuffered output
36
38
demodulator supply voltage 2
37
39
demodulator ground connection 2
38
40
not connected; left open-circuit in application
39
41
clock loop-phase comparator output
1996 Oct 24
5
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