SAA7705H 데이터 시트보기 (PDF) - Philips Electronics
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SAA7705H Datasheet PDF : 60 Pages
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Philips Semiconductors
Car radio Digital Signal Processor (DSP)
Preliminary specification
SAA7705H
SYMBOL PIN PIN TYPE
DESCRIPTION
DSPOUT1 40 B4CR
digital output 1 of the DSP core (flag F2 of the status register)
DSPOUT2 41 B4CR
digital output 2 of the DSP core (flag F3 of the status register)
DSPRESET 42 IBUFU
reset input to the DSP core (active LOW)
RTCB
43 IBUFD
asynchronous reset test control block, connect to ground
SHTCB
44 IBUFD
shift clock test control block, connect to ground
TSCAN
45 IBUFD
scan control (active HIGH), connect to ground
VDDD5V3
VSSD5V3
VDDD3V1
VSSD3V1
VSSD3V2
VDDD3V2
VDDD3V3
VSSD3V3
VSSD3V4
VDDD3V4
A0
SCL
SDA
46 VDDE5
positive supply 3 for peripheral cells
47 VSSE5
ground supply 3 for peripheral cells
48 VDDI3
positive supply 1 for DSP core
49 VSSI3
ground supply 1 for DSP core
50 VSSI3
ground supply 2 for DSP core
51 VDDI3
positive supply 2 for DSP core
52 VDDI3
positive supply 3 for DSP core
53 VSSI3
ground supply 3 for DSP core
54 VSSI3
ground supply 4 for DSP core
55 VDDI3
positive supply 4 for DSP core
56 IBUFD
I2C-bus address selection
57 SCHMITCD serial clock input (I2C-bus)
58 BD4SCI4 serial data input/output (I2C-bus)
RDSCLK 59 BD4CR
RDS bit clock output or RDS external clock input
RDSDAT
60 BT4CR
RDS data output
SELFR
61 IBUFD
AD input selection switch; to enable high-ohmic FMMPX input at fast tuner search
on pin FMRDS; if SELFR is HIGH, the input at pin FMRDS is put through to SCAD1
and FMRDS gets high-ohmic; this pin works together with the AD register bit
SELTWOTUN (see Table 9)
VSS(OSC)
OSCIN
62 APVSS
63 AP2D
ground supply for crystal oscillator circuit
crystal oscillator input: crystal oscillator sense for gain control or forced input in
slave mode
OSCOUT 64 AP2D
crystal oscillator output: drive output to 11.2896 MHz crystal
VDD(OSC)
AMAFR
65 APVDD
66 AP2D
positive supply for crystal oscillator circuit
AM audio frequency analog input (right channel)
AMAFL
67 AP2D
AM audio frequency analog input (left channel)
TAPER
68 AP2D
tape analog input (right channel)
TAPEL
69 AP2D
tape analog input (left channel)
CDRI
70 AP2D
CD analog input (right channel)
CDRB
71 AP2D
feedback input of the CD analog input (right channel)
CDLI
72 AP2D
CD analog input (left channel)
CDLB
73 AP2D
feedback input of the CD analog input (left channel)
VDDA1
VSSA1
VDACN2
74 APVDD
75 APVSS
76 AP2D
analog positive supply for SCAD1, SCAD2, SCAD3 and level-ADC
analog ground supply SCAD1, SCAD2, SCAD3 and level-ADC
ground reference voltage 2 for SCAD1, SCAD2, SCAD3 and level-ADC
1999 Aug 16
8
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