SAA7196 Datasheet, PDF (8/76 Pages) NXP Semiconductors – Digital video decoder, Scaler and Clock generator circuit DESCPro

Philips Semiconductors
Digital video decoder, Scaler and Clock
generator circuit (DESCPro)
Product specification
SAA7196
SYMBOL
CREFB
LLC
LLCB
LLC2
BTST
RTCO
V_DDD3
VMUX
V_SSD3
SODD
SVS
SHREF
PXQ
LNQ
VOE
HFL
INCADR
VCLK
VRO31
VRO30
VRO29
V_SSD4
V_DDD4
VRO28
VRO27
VRO26
VRO25
VRO24
VRO23
VRO22
VRO21
VRO20
1996 Nov 04
PIN
STATUS
DESCRIPTION
39
I/O
clock reference qualifier input/output (HIGH indicates valid data on
expansion port)
40
O
line-locked video system clock output, for front-end (ADCs) only;
frequency: 1888 × f_H for 50 Hz/625 lines per field systems and 1560 × f_H
for 60 Hz/525 lines per field systems
41
I/O
line-locked clock signal input/output, maximum 32 MHz (twice of pixel rate
in 4 : 2 : 2); frequency: 1888 × f_H for 50 Hz/625 lines per field systems and
1560 × f_H for 60 Hz/525 lines per field systems; or variable input clock up
to 32 MHz in input mode
42
O
line-locked clock signal output (pixel clock)
43
I
connected to ground; BTST = HIGH sets all outputs (except
pins 1, 28, 38, 40 and 42) to high-impedance state (testing)
44
O
real time control output
45
−
+5 V digital supply voltage 3
46
I
VRAM output multiplexing, control input for the 32- to 16-bit multiplexer
(see Table 7)
47
−
digital ground 3 (0 V)
48
O
odd/even field sequence reference output related to the scaler output
(test only)
49
O
vertical sync signal related to the scaler output (test only)
50
O
delayed HREF signal related to the scaler output (test only)
51
O
pixel qualifier output signal to mark active pixels of a qualified line
(polarity: bit QPP; test only)
52
O
line qualifier output signal to mark active video phase
(polarity: bit QPP; test only)
53
I
enable input of VRAM output
54
O
FIFO half-full flag output signal
55
O
line increment/vertical reset control output
56
I
clock input signal of FIFO output
57
O
32-bit digital VRAM output port (bit 31)
58
O
32-bit digital VRAM output port (bit 30)
59
O
32-bit digital VRAM output port (bit 29)
60
−
digital ground 4 (0 V)
61
−
+5 V digital supply voltage 4
62
O
32-bit VRAM output port (bit 28)
63
O
32-bit VRAM output port (bit 27)
64
O
32-bit VRAM output port (bit 26)
65
O
32-bit VRAM output port (bit 25)
66
O
32-bit VRAM output port (bit 24)
67
O
32-bit VRAM output port (bit 23)
68
O
32-bit VRAM output port (bit 22)
69
O
32-bit VRAM output port (bit 21)
70
O
32-bit VRAM output port (bit 20)
8