SAA4977H/V1 Просмотр технического описания (PDF) - Philips Electronics
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SAA4977H/V1 Datasheet PDF : 32 Pages
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Philips Semiconductors
Besic
Preliminary specification
SAA4977H
1 FEATURES
• Internal prefilter
• Clamp circuit
• Analog AGC
• Line locked PLL
• Triple YUV 8-bit Analog-to-Digital Converter (ADC)
• Horizontal compression
• Field rate up-conversion (50 to 100 Hz or 60 to 120 Hz)
• 4 : 1 : 1 digital I/O interface
• Digital CTI (DCTI)
• Digital luminance peaking
• Triple 10-bit Digital-to-Analog Converter (DAC)
• Memory controller
• Embedded microprocessor
• 16 kbyte ROM
• 256 byte RAM
• I2C-bus interface
• Synchronous No parity Eight bit Reception and
Transmission (SNERT) interface.
2 GENERAL DESCRIPTION
The SAA4977H is a video processing IC providing analog
YUV interfacing, video enhancing features, memory
controlling and an embedded 80C51 microprocessor core.
It is applicable especially for field rate up-conversion
(50 to 100 Hz or 60 to 120 Hz) in cooperation with a
2.9 Mbit field memory. It is designed for applications
together with:
SAA4955/56TJ, TMS4C2972/73 (serial field memories)
SAA4990H (PROZONIC)
SAA4991WP (MELZONIC).
3 QUICK REFERENCE DATA
SYMBOL
VDDA(1,2,3)
VDDD(1,2,3)
VDDA(4,5)
VDDD(4,5,6)
VDDIO
IDDA(1,2,3)
IDDD(1,2,3)
IDDA(4,5)
IDDD(4,5,6)
IDDIO
Ptot
Tamb
PARAMETER
analog supply voltage front-end
digital supply voltage front-end
analog supply voltage back-end
digital supply voltage back-end
I/O supply voltage back-end
analog supply current front-end
digital supply current front-end
analog supply current back-end
digital supply current back-end
I/O supply current back-end
total power dissipation
operating ambient temperature
MIN.
4.75
4.75
3.15
3.15
4.75
−
−
−
−
−
−
−20
TYP.
5.0
5.0
3.3
3.3
5.0
85
65
25
40
1
−
−
MAX.
5.25
5.25
3.45
3.45
5.25
100
80
35
55
10
1.3
+60
UNIT
V
V
V
V
V
mA
mA
mA
mA
mA
W
°C
4 ORDERING INFORMATION
TYPE NUMBER
SAA4977H
NAME
QFP80
PACKAGE
DESCRIPTION
plastic quad flat package; 80 leads (lead length 1.95 mm);
body 14 × 20 × 2.8 mm
VERSION
SOT318-2
1998 Jul 23
3
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