SAB9080 Datasheet, PDF (2/24 Pages) NXP Semiconductors – NTSC Picture-In-Picture PIP controller

Philips Semiconductors
NTSC Picture-In-Picture (PIP) controller
Preliminary specification
SAB9080
FEATURES
• Double window Picture-In-Picture (PIP) in interlaced or
non-interlaced mode at 8-bit resolution
• Internal 1-Mbit DRAM
• Three 8-bit Analog-to-Digital Converters (ADCs) (7-bit
performance) with clamp circuit for each acquisition
channel
• One PLL which generates the line-locked clocks for the
subchannel
• One PLL which generates the line-locked clocks for the
main and display channels
• Three 8-bit Digital-to-Analog Converters (DACs)
• Linear zoom in both horizontal and vertical directions for
the subchannel
• Linear zoom in horizontal direction for the main channel.
GENERAL DESCRIPTION
The SAB9080 is an NTSC PIP controller which can be
used in double window applications. The SAB9080 inserts
one or two live video signals with reduced size into another
live video signal. The incoming video signals are expected
to be analog baseband signals.
The conversion to the digital environment is done on chip
with ADCs. Processing and storage of the video data is
done entirely in the digital domain. The conversion back to
the analog domain is done by DACs.
Internal clocks are generated by PLLs which lock on to the
applied horizontal and vertical syncs.
The main input channel is compressed horizontally by a
factor of two and directly fed to the output. After
compression, a horizontal expansion of two is possible for
the main channel.
The subchannel is also compressed horizontally by a
factor of two but stored in memory before it is fed to the
outputs.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
Supply
V_DDD
V_DDA
I_DDD
I_DDA
PLL
f_clk(sys)
B_loop
t_jitter
ζ
digital supply voltage
analog supply voltage
digital supply current
analog supply current
system clock frequency
loop bandwidth
short-term stability
damping factor
CONDITIONS
MIN.
3.0
3.0
−
140
1792 × f_HSYNC
−
−
peak-to-peak jitter for 64 µs −
−
TYP.
3.3
3.3
50
165
28
4
−
0.7
MAX. UNIT
3.6
V
3.6
V
−
mA
210
mA
−
MHz
−
kHz
4
ns
−
ORDERING INFORMATION
TYPE
NUMBER
SAB9080H
NAME
QFP100
PACKAGE
DESCRIPTION
plastic quad flat package; 100 leads (lead length 1.95 mm);
body 14 × 20 × 2.8 mm
VERSION
SOT317-2
1999 Nov 12
2