19-0535; Rev 2; 2/09
Video Filter Amplifier with SmartSleep
and Y/C Mixer Circuit
General Description
The MAX9512 video filter amplifier with SmartSleep and
Y/C mixer is ideal for portable media players (PMPs),
portable DVD players, and set-top boxes (STBs). The
inputs can be directly connected to the digital-to-analog
converter (DAC) outputs. The dual reconstruction filters
remove high-frequency signals above 6.75MHz. The
Y/C-to-CVBS mixer creates a composite video signal
from luma and chroma. The four amplifiers each have
6dB of gain. The outputs can be DC-coupled to a load of
75Ω, which is equivalent to two video loads, or AC-cou-
pled to a load of 150Ω.
The SmartSleep circuitry intelligently reduces power
consumption based on the presence of the input signal
and the output loads. When the MAX9512 does not
detect the presence of sync on luma, the supply cur-
rent is reduced to less than 7µA. The device only
enables a video amplifier when there is an active video
input signal and an attached load. The video amplifier
remains on while a load is connected. If the load is dis-
connected, the video amplifier is turned off.
The MAX9512 operates from a 2.7V to 3.6V single sup-
ply and is offered in a small, 16-pin TQFN (3mm x
3mm) package. The device is specified over the -40°C
to +125°C automotive temperature range.
Features
♦
SmartSleep Feature Detects Input Signal and
Output Load Status to Reduce Power
Consumption
♦
Dual Standard-Definition Video Reconstruction
Filters with 6.75MHz Passband
♦
Luma and Chroma Inputs
♦
Y/C-to-CVBS Mixer
♦
Luma, Chroma, and Two Composite Outputs
♦
Supports Two Video Loads at Each Output
(DC-Coupled)
♦
2.7V to 3.6V Single-Supply Operation
MAX9512
Ordering Information
PART
MAX9512ATE+
PIN-PACKAGE
16 TQFN-EP*
(3mm x 3mm)
TOP MARK
AEN
Applications
Portable Media Players
(PMPs)
Portable DVD Players
Set-Top Boxes (STBs)
Portable Applications
Note:
All devices specified over the -40°C to +125°C operating
temperature range.
+Denotes
lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Block Diagrams
LOAD SENSE
BUFFER
CIN
LPF
6dB
COUT
Pin Configuration
CVBSOUT1
COUT
TOP VIEW
YOUT
CVBSOUT2
LOAD SENSE
BUFFER
YIN
LPF
6dB
YOUT
12
V
DD
13
N.C. 14
SMARTSLEEP 15
CIN 16
11
10
9
8
7
GND
N.C.
SHDN
N.C.
MAX9512
+
1
V
DD
2
YIN
3
GND
4
N.C.
6
5
SMARTSLEEP
SHDN
ACTIVE VIDEO
DETECT
CONTROL
LOGIC
6dB
LOAD SENSE
CVBSOUT1
LOAD SENSE
6dB
CVBSOUT2
MAX9512
THIN QFN
(3mm x 3mm)
Block Diagrams continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Video Filter Amplifier with SmartSleep
and Y/C Mixer Circuit
MAX9512
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND)
V
DD
...........................................................................-0.3V to +4V
CIN, YIN, SMARTSLEEP,
SHDN...............................-0.3V
to +4V
Duration of COUT, YOUT, CVBSOUT1, CVBSOUT2
Short Circuit to V
DD
or GND....................................Continuous
Continuous Input Current
CIN, YIN, SMARTSLEEP,
SHDN
....................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN-EP (derate 15.6mW/°C above +70°C)...1250mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
DD
= V
SHDN
= 3.3V, V
SMARTSLEEP
= GND = 0V. R
L
= No load. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER
Supply Voltage Range
SYMBOL
V
DD
CONDITIONS
Guaranteed by PSRR
YIN = 0.3V, CIN = 0.6V
SMARTSLEEP = V
DD
, YIN has no active
video signal
SMARTSLEEP = V
DD
, YIN has a black-burst
video signal with sync tip at GND (Note 2)
Shutdown Supply Current
SMARTSLEEP CHARACTERISTICS
Minimum Line Frequency
Sync Slice Level
Output Load Detect Threshold
DC CHARACTERISTICS
CIN, YIN,
guaranteed by
output voltage
swing
CIN = YIN = 0V
CIN, YIN
T
A
= -40°C to
0V
≤
V
IN
≤
+85°C
1.05V, V
DD
T
A
= -40°C to
= 2.7V
+125°C
0V
≤
V
IN
≤
1.2V, V
DD
= 3.0V
T
A
= -40°C to
+85°C
T
A
= -40°C to
+125°C
5.7
5.6
5.7
5.6
6
2.7V < V
DD
< 3.6V
3.0V < V
DD
< 3.6V
0
0
2
20
6
6.3
6.3
dB
6.3
6.3
1.05
V
1.2
5
µA
MΩ
YIN
YIN
R
L
to GND, sync pulse present
14.3
4.1
5.2
200
kHz
% V
DD
Ω
I
SHDN
V
SHDN
= GND
MIN
2.7
13
7
TYP
MAX
3.6
16
14
µA
17
0.01
10
µA
UNITS
V
mA
Supply Current
I
DD
Input-Voltage Range
V
IN
Input Current
Input Resistance
I
IN
R
IN
DC Voltage Gain
A
V
R
L
= 150Ω to
V
DD
/ 2
2
_______________________________________________________________________________________
Video Filter Amplifier with SmartSleep
and Y/C Mixer Circuit
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= V
SHDN
= 3.3V, V
SMARTSLEEP
= GND = 0V. R
L
= No load. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
0V
≤
V
IN
≤
1.05V, V
DD
= 2.7V
DC Gain Matching
0V
≤
V
IN
≤
1.2V, V
DD
= 3.0V
Output Level
CIN = YIN = 0V, R
L
= 150Ω to GND
Measured at output, V
DD
= 2.7V, 0V
≤
V
IN
≤
1.05V,
R
L
= 150Ω to -0.2V
T
A
= -40°C to
+85°C
T
A
= -40°C to
+125°C
-0.2
0.188
2.027
2.006
0
0.3
2.1
+0.2
0.400
2.163
2.163
V
MIN
-0.2
TYP
0
MAX
+0.2
dB
UNITS
MAX9512
Measured at output,
V
DD
= 2.7V, 0V
≤
V
IN
≤
1.05V,
R
L
= 150Ω to V
DD
/ 2
Output Voltage Swing
Measured at output, V
DD
= 3V, 0V
≤
V
IN
≤
1.2V, R
L
= 150Ω to -0.2V
T
A
= -40°C to
+85°C
T
A
= -40°C to
+125°C
2.027
2.1
2.163
2.316
2.292
2.316
2.4
2.472
2.472
V
P-P
Measured at output, V
DD
= 3V,
0V
≤
V
IN
≤
1.2V, R
L
= 150Ω to V
DD
/ 2
Measured at output, V
DD
= 3.135V,
0V
≤
V
IN
≤
1.05V, R
L
= 75Ω to -0.2V
Output Resistance
Power-Supply Rejection Ratio
Output Shutdown Impedance
LOGIC INPUTS (SMARTSLEEP,
SHDN
)
Logic-Low Threshold
Logic-High Threshold
Logic Input Current
V
IL
V
IH
I
IL
/I
IH
V
I
= 0V or V
DD
R
OUT
PSRR
V
OUT
= 1.3V, -5mA
≤
I
LOAD
≤
+5mA
2.7V
≤
V
DD
≤
3.6V, input referred,
R
L
= 150Ω to GND
2.4
2.472
2.027
2.1
0.47
2.163
Ω
dB
48
28
0.3 x V
DD
0.7 x V
DD
0.01
10
kΩ
V
V
µA
_______________________________________________________________________________________
3
Video Filter Amplifier with SmartSleep
and Y/C Mixer Circuit
MAX9512
AC CHARACTERISTICS
(V
DD
= V
SHDN
= +3.3V, V
SMARTSLEEP
= GND = 0V, R
L
= 150Ω to GND. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 1)
PARAMETER
Color Subcarrier Output Voltage
Swing
Mixer HPF -3dB Frequency
f = 5.5MHz
Standard-Definition
Reconstruction Filter
Inputs are 1V
P-P
,
Reference frequency is
1MHz
f = 6.75MHz
f = 11MHz
f = 27MHz
DC-coupled output, 5-step
modulated staircase
Differential Gain
DG
AC-coupled output, 5-step
modulated staircase
DC-coupled output, 5-step
modulated staircase
Differential Phase
DP
AC-coupled output, 5-step
modulated staircase
2T Pulse Response
2T = 200ns or 250ns
f = 3.58MHz
f = 4.43MHz
0.78
1.01
0.2
K%
f = 3.58MHz or
4.43MHz
f = 3.58MHz
f = 4.43MHz
0.4
0.62
0.75
degrees
f = 3.58MHz or
4.43MHz
-33
-1
SYMBOL
CONDITIONS
V
DD
= 2.7V, YIN = 0.65V, CIN = 0.7V
P-P
V
DD
= 3.0V, YIN = 0.75V, CIN = 0.9V
P-P
MIN
TYP
1.4
V
P-P
1.8
300
-0.1
-0.3
-3
-41
0.2
%
+1
dB
kHz
MAX
UNITS
4
_______________________________________________________________________________________
Video Filter Amplifier with SmartSleep
and Y/C Mixer Circuit
AC CHARACTERISTICS (continued)
(V
DD
= V
SHDN
= +3.3V, V
SMARTSLEEP
= GND = 0V, R
L
= 150Ω to GND. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 1)
PARAMETER
2T Bar Response
SYMBOL
CONDITIONS
Bar time is 18µs, the beginning 2.5% and
the ending 2.5% of the bar time are ignored,
2T = 200ns or 250ns
Bar time is 18µs, the beginning 2.5% and
the ending 2.5% of the bar time are ignored,
2T = 200ns or 250ns
5-step staircase
Difference in time between the 50% point of
the output signals, YOUT to COUT
100kHz
≤
f
≤
5MHz, inputs are 1V
P-P
Outputs are 2V
P-P
100kHz
≤
f
≤
5MHz, inputs are 1V
P-P
f = 100kHz, 200mV
P-P
, input referred
f = 5MHz
YIN = 1V, output settled to within 1% of the
final voltage, R
L
= 150Ω to GND
YIN = 1V, output settled to within 1% of the
final voltage, R
L
= 150Ω to GND
MIN
TYP
0.2
MAX
UNITS
K%
MAX9512
2T Pulse-to-Bar K Rating
Nonlinearity
Interchannel Timing Error
Group Delay Distortion
Interchannel Group Delay
Distortion Error
Peak Signal to RMS Noise
Power-Supply Rejection Ratio
Output Impedance
Enable Time
0.3
0.1
0.2
10
2
67
43
6
13
K%
%
ns
ns
ns
dB
dB
Ω
µs
Disable Time
CROSSTALK
All Hostile Output Crosstalk
All Hostile Input Crosstalk
1.1
µs
f = 4.43MHz
f = 4.43MHz,
SHDN
= GND,
input termination resistors are 75Ω
-71
-106
dB
dB
Note 1:
All devices are 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by design.
Note 2:
Specified current is an average over time.
_______________________________________________________________________________________
5
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