®
ISL59831
Data Sheet
March 29, 2007
FN6266.0
Single Supply Video Driver with
Reconstruction Filter and Charge Pump
The ISL59831 is a single supply video driver with
reconstruction filter and charge pump. It is designed to drive
SDTV displays with luma (Y) or composite video (CV)
signals. It operates on a single supply (3.0V to 3.6V) and
generates its own negative supply (-1.9V) using a regulated
charge pump. Input signal can be AC or DC coupled. When
AC coupled, the sync tip clamp sets the blank level to ground
at the output, ensuring that the sync-tip voltage level is set to
approximately -300mV at the back-termination resistor of a
standard video load. The ISL59831 is capable of driving two
AC or DC coupled standard video loads. The device also
features a 4
th
order Butterworth reconstruction filter with
nominal -3dB frequency set to 9.1MHz, providing 44dB of
attenuation at 27MHz. When powered down, the device
draws 2µA supply current. Nominal operational current is
15mA. The ISL59831 is available in 12 Ld TDFN package
and operates from the -40°C to +85°C temperature range.
Features
• 3.3V Nominal Supply, Operates Down to 3.0V
• DC-Coupled or AC-Coupled Input or Output
• Eliminates Need for Large Output Coupling Capacitor
• Internal Sync Tip Clamp Puts the Backporch to Ground at
the Output
• Drives Two Standard Video Loads
• Response Flat to 5MHz and 44dB Attenuation at 27MHz
• Pb-free Plus Anneal Available (RoHs Compliant)
Applications
• Set-Top Box Receiver
• Televisions
• DVD Players
• Digital Displays
• Cell Phones
• Digital Cameras
Pinout
ISL59831
(12 LD TDFN)
TOP VIEW
IN
GND
GND
VCC
ENABLE
GCP
1
2
3
4
5
6
12 OUT
11 VEE
IN
10 CPVEE
OUT
9
8
7
CP
CN
VCP
Simplified Block Diagram
ISL59831
VIDEO IN
LOWPASS
FILTER
CLAMP
x2
VIDEO
OUT
CHARGE
PUMP
Ordering Information
PART
NUMBER
ISL59831IRTZ
PART
TAPE &
MARKING REEL
83IZ
-
7”
PACKAGE
PKG.
DWG. #
12 Ld 4x3 TDFN L12.4x3A
12 Ld 4x3 TDFN L12.4x3A
ISL59831IRTZ-T7 83IZ
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL59831
Pin Descriptions
NUMBER
1
2, 3
4
5
6
7
8
9
10
11
12
NAME
IN
GND
V
CC
ENABLE
GCP
VCP
CN
CP
CPVEE
OUT
VEE
IN
OUT
EP
Video Input. AC-couple (0.1µF) or DC-couple
Ground
Positive Power Supply. Bypass to GND with a 0.1µF capacitor.
Enable. Connect to V
CC
to enable device.
Charge Pump Ground
Charge Pump Power Supply. Bypass with a 0.1µF capacitor to GCP.
Charge-Pump Flying Capacitor Negative Terminal. Connect a 56nF capacitor from CP to CN.
Charge-Pump Flying Capacitor Positive Terminal. Connect a 56nF capacitor from CP to CN.
Charge Pump Negative Output. Bypass with a 0.22µF capacitor to GCP.
Negative Supply. Connect an RC filter between VEE
IN
and CPVEE
OUT
. See “Block Diagram/Typical Application
Circuit” on page 2.
Video Output. Can be AC-coupled (220µF) or DC-coupled
Open or connect to VEE
IN
FUNCTION
Block Diagram/Typical Application Circuit
3.0V TO 3.6V
4.7μF
0.1μF
VCC ENABLE
LUMA OR
CV VIDEO
SOURCE
IN
LPF
9MHz
LEVEL
SHIFT
X2
OUT 75Ω
75Ω
CLAMP
+
ISL59831
GND
GND
-593mV
2
-
VEE
IN
CPVEE
OUT
3.0V TO 3.6V
VCP
CHARGE
PUMP
C
CP
0.1μF 4.7μF
GCP
CP
56nF
C
F
CN
20Ω
R
FIL
0.1μF
C
S
C
FIL
0.22μF
FN6266.0
March 29, 2007
ISL59831
Absolute Maximum Ratings
(T
A
= +25°C)
V
CC
to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4V
V
IN
to GND . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to V
CC
+ 0.3V
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . ±50mA
Maximum Current into Any Pin . . . . . . . . . . . . . . . . . . . . . . . ±50mA
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7) . . .3500V
Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . .350V
Thermal Information
Thermal Resistance (Typical, Notes 1, 2)
θ
JA
(°C/W)
θ
JC
(°C/W)
4x3 TDFN Package . . . . . . . . . . . . . . .
41
3.5
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
NOTES:
1.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2.
θ
JC
, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
SYMBOL
PARAMETER
V
CP
= V
CC
= 3.3V, C
F
= 56nF ±20%, C
S
= 0.1µF ±20%, R
FIL
= 20Ω ±1%, C
FIL
= 0.22µF ±20%,
C
IN
= 0.1µF ±20%, R
L
= 150Ω, C
L
= 0pF, T
A
= +27°C, unless otherwise specified.
CONDITIONS
MIN
TYP
MAX
UNIT
DC CHARACTERISTICS
V
CC,
V
CP
CPVEE
I
CC
I
CP
I
PD
I
IN
A
V
V
IN_MAX
Supply Range
Charge Pump Output
Supply Current
Charge Pump Supply
Current
Power Down Current
Input Pulldown Current
DC Gain
Max DC Input Range
DC-Coupled Input, guaranteed by output linearity
No load
No load
ENABLE = 0.4V
V
IN
= 0.5V
0.5
1.9
1.4
-500
0
-530
2
35
-550
40
-592
3.9
50
-600
80
-650
3.0
-1.1
4
5
3.3
-1.9
6
9
2
2
2
3.6
-2.4
8.5
20
5
4.5
2.06
V
V
mA
mA
µA
µA
V/V
V
mV
mV
mV
mA
dB
V
CLAMPOUT
Output Sync Tip Clamp Sync height = 293mV, V
IN
≤
0, AC-coupled input
Level
VCLAMPIN Input Clamp Level
V
OS
I
CLAMP
PSRR
DC
Output Level Shift
Clamp Restore Current
Input floating
Sync height = 293mV, V
IN
>
0, output shifted relative to input,
DC-coupled input
Force V
IN
= -0.3V
Power Supply Rejection VCC = +3.0 to +3.6
AC CHARACTERISTICS
A
PB
A
SB
dG
dP
SNR
Passband Flatness
Stopband Attenuation
Differential Gain
Differential Phase
Signal to Noise Ratio
f = 100kHz to 5MHz relative to 100kHz
f
≥
27MHz relative to 100kHz
5-step modulated staircase
5-step modulated staircase
Peak signal (1.4V
P-P
) to RMS noise, f = 10Hz to 50MHz
0
25
44
0.4
0.35
59
2
dB
dB
%
°
dB
3
FN6266.0
March 29, 2007
ISL59831
Electrical Specifications
SYMBOL
tg
Δtg
H
DIST
V
DIST
t
CLAMP
PSRR
LOGIC
V
IL
V
IH
I
I
Logic Low Input Voltage
Logic High Input Voltage
Logic Input Current
Source
2.0
-10
10
0.8
V
V
µA
PARAMETER
DC Group Delay
Group Delay Deviation
Line Time Distortion
Field Time Distortion
Clamp Settling Time
Group delay at 100kHz
Deviation from 100kHz to 3.58MHz
18µs, 100 IRE
130 Lines, 18µs, 100 IRE
Back porch to ±1% of final value
V
CP
= V
CC
= 3.3V, C
F
= 56nF ±20%, C
S
= 0.1µF ±20%, R
FIL
= 20Ω ±1%, C
FIL
= 0.22µF ±20%,
C
IN
= 0.1µF ±20%, R
L
= 150Ω, C
L
= 0pF, T
A
= +27°C, unless otherwise specified.
(Continued)
CONDITIONS
MIN
TYP
56
10
0.1
0.1
50
32
MAX
UNIT
ns
ns
%
%
Lines
dB
Power Supply Rejection V
CC
+ 100mV
P-P
sine, f = 100kHz to 5MHz
CHARGE PUMP
f
CP
V
OUTCP
Charge Pump Clock
Frequency
Charge Pump Noise
Coupling
R
FIL
= 20Ω, C
FIL
= 0.22µF, measured at output
15
10.8
MHz
mV
P-P
4
FN6266.0
March 29, 2007
ISL59831
Typical Performance Curves
V
CP
= V
CC
= 3.3V, C
F
= 56nF ±20%, C
S
= 0.1µF ±20%, R
FIL
= 20Ω ±1%, C
FIL
= 0.22µF ±20,
C
IN
= 0.1µF ±20%, R
L
= 150Ω, C
L
= 0pF, unless otherwise noted.
10
0
-10
-2
GAIN (dB)
GAIN (dB)
-20
R
L
= 500Ω
-30
-40
-50
R
L
= 150Ω
-60 V
OUT
= 2V
P-P
C
L
= 0pF
-70
0.1M
R
L
= 75Ω
-10
1M
FREQUENCY (Hz)
10M
100M
0.1M
1M
10M
100M
FREQUENCY (Hz)
-8
R
L
= 1000Ω
-4
-6
2
0
C
L
= 220pF
C
L
= 150pF
C
L
= 10pF
FIGURE 1. GAIN vs FREQUENCY FOR VARIOUS R
LOAD
FIGURE 2. GAIN vs FREQUENCY FOR VARIOUS C
LOAD
2.0
V
OUT
= 2V
P-P
1.5 C
L
= 11pF
RL = 150Ω
1.0
GAIN (dB)
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0.1M
9.16
9.15
3dB ROLL-OFF (MHz)
1M
FREQUENCY (Hz)
10M
9.14
9.13
9.12
9.11
9.10
3.0
3.1
3.2
3.3
3.4
SUPPLY VOLTAGE (V)
3.5
3.6
FIGURE 3. GAIN FLATNESS vs FREQUENCY
FIGURE 4. 3dB ROLL-OFF vs SUPPLY VOLTAGE
1.6
1.5
PEAKING (dB)
1.4
1.3
1.2
1.1
1.0
C
L
= 220pF
R
L
= 150Ω
ISOLATION (dB)
3.0
3.1
3.2
3.3
3.4
3.5
3.6
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1M
1M
10M
FREQUENCY (Hz)
100M
SUPPLY VOLTAGE (V)
FIGURE 5. PEAKING vs SUPPLY VOLTAGE (C
L
= 220pF)
FIGURE 6. INPUT TO OUTPUT ISOLATION vs FREQUENCY
5
FN6266.0
March 29, 2007
Embedded System
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