sab9075h NXP Semiconductors, sab9075h Datasheet - Page 2

• Manufacturer Part Number: sab9075h
• Description: Picture-in-picture Pip Controller For Ntsc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
Display
I
February 1995
2
C-bus programmable
One or two live pictures can be displayed
simultaneously
Wide range of multi-Picture-In-Picture (PIP) modes
available
Six 6-bit Analog-to-Digital Converters (ADC) with
clamping circuit
Enhanced vertical resolution at most modes for live
pictures
Two Phase-Locked-Loops (PLL) with Voltage
Controlled Oscillator (VCO) to generate the line-locked
clocks
Three 7-bit Digital-to-Analog Converters (DAC)
4 : 1 : 1 data format
Data reduction factors 1 to 4, 1 to 9 and 1 to 16.
Different single, double and multi-PIP modes can be set
Several aspect ratios can be handled
Reduction factors can be set automatically and
manually
Selection of vertical filtering type
Freeze of live pictures
Single-PIP display position, four corners on-screen
Multi-PIP display position, left or right on-screen
Fine tuned display position, H (6-bit), V (6-bit)
Fine tuned acquisition area, H (4-bit), V (4-bit)
Channel-border and live PIP selectable
Eight main-border, sub-border, channel-border and
background colours selectable
Border and background brightness adjustable, 30%,
50%, 70% and 100% IRE
Several types of decoder input signals can be set
6-bit HUE and SAT signals (0 to 5 V) adjustable by
I
Main and sub-audio mute controllable by I
Picture-in-Picture (PIP) controller for NTSC
2
C-bus
2
C-bus.
2
GENERAL DESCRIPTION
The SAB9075H is a picture-in-picture controller for the
NTSC environment in combination with the Integrated
NTSC decoder and sync processor TDA8315.
The device inserts one or two live video channels with
reduced sizes into a live video signal. All video signals are
expected to be analog baseband signals. The conversion
into the digital environment and back to the analog
environment is carried out on-chip. Internal clocks are
generated by two PLLs.
Due to the two PIP channels and a large external memory,
a wide range of PIP modes are offered. The emphasis is
put on double-PIP and multi-PIP modes. In combination
with the different border colours and some external
software the IC concept can be used as an excellent
channel selection tool.
Some of the I
saturation and HUE of the colours. There are also outputs
for the mute function of main and sub-channel.
2
C-bus registers are for controlling the
Preliminary specification
SAB9075H