ISL59832
®
Data Sheet
June 11, 2008
FN6267.1
Dual Channel, Single Supply Video
Features
Reconstruction Filter with Charge Pump
• 3.3V Nominal Supply, Operates Down to 3.0V
• DC-Coupled Outputs
The ISL59832 is a dual channel, single supply video driver
with reconstruction filter and charge pump. It is designed to
drive SDTV displays with S-Video (Y/C) signals. It operates
on a single supply (3.0V to 3.6V) and generates its own
negative supply (-1.5V) using a regulated charge pump.
Input signals can be AC- or DC-coupled. When AC-coupled,
the sync tip clamp sets the blank level to ground at the
output of Channel 1 thus ensuring that the sync-tip voltage
level is set to approximately -300mV at the back-termination
resistor of a standard video load. Channel 1 also has a sync
detector whose output is available at SYNC_OUT pin. In a
typical application where the luma is connected to
Channel 1, and chrominance is connected to Channel 2,
SYNC_IN is connected to SYNC_OUT thus providing timing
to Channel 2. Channel 2 has a keyed clamp which sets the
output to ground when SYNC_IN is driven to the logic high
state. The ISL59832 is capable of driving two DC- or
AC-coupled standard video loads. The ISL59832 features a
4th order Butterworth reconstruction filter that provides a
9MHz nominal -3dB frequency and 40dB of attenuation at
27MHz. Nominal operational current is 31mA. When
powered down, the device draws 1µA maximum supply
current. The ISL59832 is available in 16 Ld TQFN package.
• Inputs can be AC- or DC-Coupled
• Eliminates the Need for Large Output Coupling Capacitors
• Integrated Sync Tip Clamp sets Backporch to Ground at
the Output For Channel 1 for 1VP-P Standard Video Signal
• Integrated Keyed Clamp Puts Channel 2 Output to Ground
During Sync
• Each Output Drives 2 Standard Video Loads
• Response Flat to 5MHz, with 40dB Attenuation at 27MHz
• Pb-Free (RoHS compliant)
Pinout
ISL59832
(16 LD TQFN)
TOP VIEW
16 15 14 13
SYNC_IN
1
2
3
4
12
11
10
9
CAP+
CAP-
SYNC_OUT
Ordering Information
EP
V
S
V
CP
TEMP.
PART
NUMBER
PART
MARKING
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ENABLE
GND
CP
5
6
7
8
ISL59832IRZ
59 832IRZ -40 to +85 16 Ld TQFN
MDP0046
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish,
which is RoHS compliant and compatible with both SnPb and Pb-free
soldering operations). Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
Block Diagram
ISL59832
CHANNEL 1
CLAMP +
LPF
Applications
• Set Top Box Receiver
• Television
VIDEO IN
SYNC
VIDEO OUT
(Y)
x2
(Y)
9MHz
DETECTOR
CHARGE PUMP
• DVD Player
CHANNEL 2
LPF
VIDEO IN
(C)
KEYED
CLAMP
VIDEO OUT
(C)
x2
9MHz
CHARGE PUMP
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2008. All Rights Reserved
1
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