saa7110 NXP Semiconductors, saa7110 Datasheet - Page 8

• Manufacturer Part Number: saa7110
• Description: One Chip Front-end 1 Ocf1
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1995 Oct 18
Y7
Y6
Y5
Y4
Y3
Y2
V
V
Y1
Y0
UV7
UV6
UV5
UV4
UV3
UV2
UV1
UV0
FEIN
(MUXC)
GPSW
(VBLK)
XTALO
XTALI
V
V
SYMBOL
SS
DD
SS
DD
One Chip Front-end 1 (OCF1)
PIN
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
Upper 6 bits of the 8-bit luminance (Y) digital output. As part of the digital YUV-bus
(data rate LLC/2), or A/D2(3) output (data rate LLC/2) selectable via I
ground
supply voltage (+5 V)
Lower 2 bits of the 8-bit luminance (Y) digital output. As part of the digital YUV-bus
(data rate LLC/2), or A/D2(3) output (data rate LLC/2) selectable via I
8-bit digital UV (colour difference) output; multiplexed colour difference signal for U and V
component of demodulated CVBS or chrominance signal. The format and multiplexing
scheme can be selected via I
(data rate LLC/2), or A/D3(2) output (data rate LLC/2) selectable via I
Fast Enable input (active LOW); this signal is used to control fast switching on the digital
YUV-bus. A high at this input forces the IC to set its Y and UV outputs to the high impedance
state. To use this function set I
(Multiplex Components input; control signal for the analog multiplexers for fast switching
between locked Y/C signals or locked CVBS signals. FEIN automatically fixed to LOW (digital
YUV-bus enabled), if one of the three MUXC functions are selected (MS24 or MS34 or
MUYC = HIGH).
General Purpose Switch output; the state of this signal is programmable via I
0Dh, bit 1. Select GPSW function via I
VBLK via I
Crystal oscillator output (to 26.8 MHz crystal); not used if TTL clock is used.
Crystal oscillator input (from 26.8 MHz crystal) or connection of external oscillator with TTL
compatible square wave clock signal.
ground
supply voltage (+5 V)
2
C-bus bit VBLKA = 1).
2
C-bus control. These signals are part of the digital YUV-bus
2
C-bus bits MS24 and MS34 and MUYC to LOW.
8
2
C-bus bit VBLKA = 0. (Vertical Blank test output; select
DESCRIPTION
SAA7110; SAA7110A
2
2
2
C-bus bit SQPB = 1.
C-bus bit SQPB = 1.
C-bus bit SQPB = 1.
Product specification
2
C-bus register