MAXIM MAX9513ATE

19-0604; Rev 0; 7/06
KIT
ATION
EVALU
E
L
B
A
L
AVAI
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
The SmartSleep circuitry intelligently reduces power
consumption based on the presence of the input signal
and the output loads. When the MAX9513 does not
detect the presence of sync on the input video signal,
the supply current 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 disconnected, the video amplifier is turned off.
The MAX9513 contains one reconstruction filter, two
video amplifiers, and a pulldown switch at one of the
two CVBS outputs. The MAX9513 has the ability to control the bidirectional video signals at the CVBS video
connections without the need for separate switches or
relays. This feature is particularly useful for portable
DVD players, which often use the same connector to
drive a composite video output and to accept an external video signal to display on the LCD panel.
The MAX9513 operates from a 2.7V to 3.6V single supply
and is offered in small 16-pin TQFN (3mm x 3mm) and
16-pin QSOP packages. The device is specified over
the -40°C to +125°C automotive temperature range.
Features
o SmartSleep Feature Detects Input Signal and
Output Load Status to Reduce Power
Consumption
o Standard-Definition Video Reconstruction Filter
with 6.75MHz Passband
o Two Composite Inputs and Outputs
o Integrated Support for a Bidirectional Composite
Video Signal
o Supports Two Video Loads at Each Output
(DC-Coupled)
o 2.7V to 3.6V Single-Supply Operation
Ordering Information
PART
PIN-PACKAGE PKG CODE
MAX9513ATE+
16 TQFN-EP**
(3mm x 3mm)
MAX9513AEE+* 16 QSOP
TOP MARK
T1633-4
AFC
E16-4
—
Note: All devices are specified over the -40°C to +125°C operating temperature range.
+Denotes lead-free package.
*Future product—contact factory for availability.
**EP = Exposed pad.
Block Diagrams
INT/EXT
MAX9513
Applications
SMARTSLEEP
CONTROL
LOGIC
SHDN
Portable DVD Players
LOAD SENSE
Portable Set-Top Boxes
ACTIVE VIDEO
DETECT
Personal Video Recorders (PVRs)
CVBSOUT1
6dB
Portable Media Players (PMPs)
Portable Video
CVBSIN
BUFFER
LPF
EXTCVBSIN
CLAMP
LOAD SENSE
6dB
CVBSOUT2
Block Diagrams continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX9513
General Description
The MAX9513 CVBS video filter amplifier with
SmartSleep and bidirectional video support is ideal for
portable DVD players and portable media players
(PMPs). The input can be directly connected to the digital-to-analog converter (DAC) output. The reconstruction
filter removes high-frequency signals above 6.75MHz.
The amplifiers have 6dB of gain, and the outputs can be
DC-coupled to a load of 75Ω, which is equivalent to two
video loads, or can be AC-coupled to a load of 150Ω.
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
ABSOLUTE MAXIMUM RATINGS
(Voltages with respect to GND.)
VDD ..........................................................................-0.3V to +4V
SMARTSLEEP, SHDN, INT/EXT,
CVBSIN, EXTCVBSIN ..........................................-0.3V to +4V
Duration of Short Circuit to
VDD or GND (CVBSOUT1, CVBSOUT2)................Continuous
Continuous Input Current
EXTCVBSIN, CVBSIN,
SMARTSLEEP, SHDN, INT/EXT ....................................±20mA
Continuous Power Dissipation (TA = +70°C)
16-Pin TQFN (derate 15.6mW/°C above +70°C)..........1250mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
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
(VDD = VSHDN = 3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V, RL = no load. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Supply Voltage Range
Supply Current
VDD
IDD
CONDITIONS
Guaranteed by PSRR
MIN
ISHDN
MAX
UNITS
3.6
V
INT/EXT = GND, CVBSIN = 0.3V
13
16
INT/EXT = VDD,
EXTCVBSIN is unconnected
4.3
6
7
14
mA
SMARTSLEEP = VDD,
CVBSIN has no active video signal
µA
SMARTSLEEP = VDD, CVBSIN has a blackburst video signal with sync tip at GND
(Note 2)
Shutdown Supply Current
TYP
2.7
17
VSHDN = GND
0.01
10
µA
5.2
% VDD
200
Ω
SMARTSLEEP CHARACTERISTICS
Minimum Line Frequency
CVBSIN
14.3
Sync Slice Level
CVBSIN
4.1
Output Load Detect Threshold
Sync pulse present, RL to GND
kHz
DC CHARACTERISTICS
Input Voltage Range
VIN
CVBSIN, guaranteed
by output voltage
swing
2.7V < VDD < 3.6V
0
1.05
3.0V < VDD < 3.6V
0
1.2
V
Input Current
IIN
CVBSIN = 0V
2
Input Resistance
RIN
CVBSIN
20
2
_______________________________________________________________________________________
5
µA
MΩ
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
(VDD = VSHDN = 3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V, RL = no load. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Sync-Tip Clamp Level
SYMBOL
VCLP
CONDITIONS
MIN
EXTCVBSIN
0.25
Input Clamping Current
EXTCVBSIN = 500mV + VCLP
0.5
EXTCVBSIN Input Voltage Range
Guaranteed by
output voltage
swing
VP-P
Output Resistance
%
Ω
300
5.7
6
6.3
dB
RL = 150Ω to VDD / 2, 0V ≤ VIN ≤ 1.05V,
VDD = 2.7V
-0.2
0
+0.2
dB
CVBSIN = 0V,
INT/EXT = GND, RL = 150Ω to GND
0.21
0.3
0.38
CEXTCVBSIN = 0.1µF to GND,
INT/EXT = VDD, RL = 150Ω to GND
0.21
0.27
0.38
TA = -40°C to
+85°C
2.027
2.1
2.163
TA = -40°C to
+125°C
2.006
Measured at output, VDD = 2.7V,
0V ≤ VIN ≤ 1.05V, RL = 150Ω to VDD / 2
2.027
2.1
2.163
TA = -40°C to
+85°C
2.316
2.4
2.472
TA = -40°C to
+125°C
2.292
Measured at output,
VDD = 3V,
0V ≤ VIN ≤ 1.2V,
RL = 150Ω to -0.2V
ROUT
2
RL = 150Ω to VDD / 2, 0V ≤ VIN ≤ 1.05V,
VDD = 2.7V
Measured at output,
VDD = 2.7V,
0V ≤ VIN ≤ 1.05V,
RL = 150Ω to -0.2V
Output Voltage Swing
µA
1.2
EXTCVBSIN
Output Level
V
1.5
3.0V < VDD < 3.6V
Maximum Input Source
Resistance
DC Gain Matching
UNITS
0.37
1.05
Sync Crush
AV
1
MAX
2.7V < VDD < 3.6V
EXTCVBSIN, percentage reduction in sync
pulse (0.3VP-P), guaranteed by input
clamping current measurement, measured
at input
DC Voltage Gain
TYP
V
2.163
2.472
Measured at output, VDD = 3V,
0V ≤ VIN ≤ 1.2V, RL = 150Ω to VDD / 2
2.316
2.4
2.472
Measured at output, VDD = 3.135V,
0V ≤ VIN ≤ 1.05V, RL = 75Ω to -0.2V
2.027
2.1
2.163
VOUT = 1.3V, -5mA ≤ ILOAD ≤ +5mA
VP-P
0.47
Ω
_______________________________________________________________________________________
3
MAX9513
ELECTRICAL CHARACTERISTICS (continued)
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
ELECTRICAL CHARACTERISTICS (continued)
(VDD = VSHDN = 3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V, RL = no load. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Power-Supply Rejection Ratio
Output Pulldown Resistance
PSRR
RPD
CONDITIONS
2.7V ≤ VDD ≤ 3.6V, input referred,
RL = 150Ω to GND
MIN
TYP
MAX
48
UNITS
dB
INT/EXT = VDD, CVBSOUT1
Output Shutdown Impedance
3.7
Ω
28
kΩ
LOGIC INPUTS (SMARTSLEEP, SHDN, INT/EXT)
Logic-Low Threshold
VIL
Logic-High Threshold
VIH
Logic Input Current
IIL / IIH
0.3 x
VDD
0.7 x
VDD
VI = 0V or VDD
V
V
0.01
10
µA
AC ELECTRICAL CHARACTERISTICS
(VDD = VSHDN = 3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V, RL = 150Ω to GND. TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
f = 5.5MHz
Standard-Definition
Reconstruction Filter
Inputs are 1VP-P, reference
frequency is 1MHz
f = 6.75MHz
Differential Gain
Differential Phase
MAX
UNITS
-0.1
-1
f = 11MHz
f = 27MHz
TYP
-0.3
-3
-33
+1
dB
-41
DC-coupled output,
5-step modulated staircase
f = 3.58MHz or
4.43MHz
0.2
AC-coupled output,
5-step modulated staircase
f = 3.58MHz or
4.43MHz
0.4
DC-coupled output,
5-step modulated staircase
f = 3.58MHz
0.62
f = 4.43MHz
0.75
AC-coupled output,
5-step modulated staircase
f = 3.58MHz
0.78
f = 4.43MHz
1.01
DG
%
DP
Degrees
2T Pulse Response
2T = 200ns or 250ns
0.2
K%
2T Bar Response
Bar time is 18µs, the beginning 2.5% and the ending 2.5%
of the bar time are ignored, 2T = 200ns or 250ns
0.2
K%
2T Pulse-to-Bar K
Rating
Bar time is 18µs, the beginning 2.5% and the ending 2.5%
of the bar time are ignored, 2T = 200ns or 250ns
0.3
K%
4
_______________________________________________________________________________________
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
(VDD = VSHDN = 3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V, RL = 150Ω to GND. TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Nonlinearity
5-step staircase
0.1
%
Group Delay
Distortion
100kHz ≤ f ≤ 5MHz, inputs are 1VP-P
10
ns
Peak Signal to RMS
Noise
100kHz ≤ f ≤ 5MHz, inputs are 1VP-P
67
dB
Power-Supply
Rejection Ratio
f = 100kHz, 200mVP-P, input referred
43
dB
Output Impedance
f = 5MHz
6
Ω
Enable Time
CVBSIN = 1V, output settled to within 1% of the final
voltage, RL = 150Ω to GND
13
µs
Disable Time
CVBSIN = 1V, output settled to within 1% of the final
voltage, RL = 150Ω to GND
1.1
µs
All Hostile Output
Crosstalk
f = 4.43MHz
-70
dB
All Hostile Input
Crosstalk
f = 4.43MHz, SHDN = GND,
input termination resistors are 75Ω
-69
dB
CROSSTALK
Note 1: All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by design.
Note 2: Specified current is an average over time.
_______________________________________________________________________________________
5
MAX9513
AC ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(VDD = V SHDN = +3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V. RL = 150Ω to GND. TA = +25°C, unless otherwise noted.)
-10
-20
-30
-40
0.4
0.2
0
-0.2
-0.4
MAX9513 toc03
0
-10
-20
-30
-40
-0.6
-50
-50
-0.8
-60
-1.0
-60
100k
1M
10M
10M
100k
100M
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
LARGE-SIGNAL GAIN FLATNESS
vs. FREQUENCY
GROUP DELAY
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
VOUT = 2VP-P
125
-10
-20
DELAY (ns)
0.2
0
-0.2
PSRR (dB)
100
0.4
MAX9513 toc06
0.6
0
MAX9513 toc05
150
MAX9513 toc04
VOUT = 2VP-P
NORMALIZED TO 1MHz
0.8
1M
100k
100M
1.0
75
50
-30
-40
-50
-0.4
25
-0.6
-60
0
-70
-0.8
-25
-1.0
100k
1M
10M
-80
1M
100k
100M
10M
100M
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
VOLTAGE GAIN
vs. TEMPERATURE
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
13.0
12.5
12.0
3.5
2.00
1.99
1.98
1.97
CVBSIN INPUT ONLY
3.0
OUTPUT VOLTAGE (V)
2.01
VOLTAGE GAIN (V/V)
13.5
4.0
MAX9513 toc08
2.02
MAX9513 toc07
14.0
100M
MAX9513 toc09
OUTPUT AMPLITUDE (dB)
0.6
VOUT = 2VP-P
NORMALIZED TO 1MHz
10
OUTPUT AMPLITUDE (dB)
0
VOUT = 100mVP-P
NORMALIZED TO 1MHz
0.8
20
MAX9513 toc02
VOUT = 100mVP-P
NORMALIZED TO 1MHz
OUTPUT AMPLITUDE (dB)
OUTPUT AMPLITUDE (dB)
1.0
MAX9513 toc01
20
10
LARGE-SIGNAL GAIN
vs. FREQUENCY
SMALL-SIGNAL GAIN FLATNESS
vs. FREQUENCY
SMALL-SIGNAL GAIN
vs. FREQUENCY
SUPPLY CURRENT (mA)
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
2.5
2.0
1.5
1.0
0.5
11.5
1.96
11.0
-0.5
1.95
-50
-25
0
25
50
75
TEMPERATURE (°C)
6
0
100
125
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
-0.5
0
0.5
1.0
INPUT VOLTAGE (V)
_______________________________________________________________________________________
1.5
2.0
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
MAX9513 toc12
MAX9513 toc11
MAX9513 toc10
DIFFERENTIAL
GAIN (%)
12.5T RESPONSE
2T RESPONSE
DIFFERENTIAL GAIN AND PHASE
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
1
2
3
4
5
6
CVBSIN
200mV/div
CVBSIN
200mV/div
CVBSOUT
400mV/div
CVBSOUT
400mV/div
7
DIFFERENTIAL
PHASE (deg)
0.8
0.4
0
-0.4
-0.8
1
2
3
4
5
6
400ns/div
100ns/div
7
STEP
NTC-7 VIDEO TEST
SIGNAL ON CVBS OUTPUTS
MAX9513 toc15
MAX9513 toc14
CVBSIN
500mV/div
CVBSOUT1
1V/div
10µs/div
PAL COLOR BARS
PAL MULTIBURST RESPONSE
MAX9513 toc13
10µs/div
CVBSIN
500mV/div
CVBSIN
500mV/div
CVBSOUT1
1V/div
CVBSOUT1
1V/div
10µs/div
_______________________________________________________________________________________
7
MAX9513
Typical Operating Characteristics (continued)
(VDD = V SHDN = +3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V. RL = 150Ω to GND. TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VDD = V SHDN = +3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V. RL = 150Ω to GND. TA = +25°C, unless otherwise noted.)
ENABLE TIME
FIELD SQUARE-WAVE RESPONSE
DISABLE TIME
MAX9513 toc17
MAX9513 toc16
MAX9513 toc18
INPUT VOLTAGE = 1V
INPUT VOLTAGE = 1V
CVBSIN
500mV/div
OUTPUT
1V/div
OUTPUT
1V/div
CVBSOUT1
1V/div
SHDN
1V/div
SHDN
1V/div
2µs/div
200ns/div
PULLDOWN RESISTANCE
DISTRIBUTION
PULLDOWN RESISTANCE
vs. TEMPERATURE
FREQUENCY RESPONSE
AT 6.75MHz DISTRIBUTION
6.5
6.0
MAX9513 toc21
MAX9513 toc20
7.0
5.5
PROBABILITY
PULLDOWN RESISTANCE (Ω)
MAX9513 toc19
2ms/div
PROBABILITY
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
PULLDOWN RESISTANCE (Ω)
8
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
-0.6
-0.5
-0.4
-0.3
-0.2
ATTENUATION (dB)
_______________________________________________________________________________________
-0.1
0
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
INPUT-TO-INPUT CROSSTALK
vs. FREQUENCY
OUTPUT IMPEDANCE (Ω)
-20
CROSSTALK (dB)
PROBABILITY
100
MAX9513 toc23
MAX9513 toc22
0
OUTPUT IMPEDANCE
vs. FREQUENCY
-40
-60
-80
MAX9513 toc24
FREQUENCY RESPONSE
AT 27MHz DISTRIBUTION
10
1
-100
-120
100k
-52 -50 -48 -46 -44 -42 -40 -38 -36 -34 -32
1M
10M
100M
0.1
100k
FREQUENCY (Hz)
ATTENUATION (dB)
1M
10M
100M
FREQUENCY (Hz)
Pin Description
PIN
NAME
FUNCTION
TQFN
QSOP
1, 13
3, 15
VDD
Power Supply. Bypass VDD with a 0.1µF capacitor to ground.
2, 3,
8, 16
2, 4,
5, 10
GND
Ground
4
6
CVBSIN
5
7
EXTCVBSIN
SHDN
Internal CVBS Signal Input. Directly connect this input to the video DAC output.
External CVBS Signal Input. AC-couple the signal through a 0.1µF capacitor to this input.
Active-Low Shutdown Logic Input. Connect to logic-low to place device in shutdown.
Connect to logic-high for normal operation.
6
8
7, 11, 12
9, 13, 14
N.C.
9
11
CVBSOUT2
CVBS Output 2
10
12
CVBSOUT1
CVBS Output 1. CVBSOUT1 is actively pulled to GND when INT/EXT is logic-high.
14
16
INT/EXT
15
1
SMARTSLEEP
EP
—
EP
No Connection. Connect to GND.
Internal/External CVBS Logic Input. Connect INT/EXT low to process CVBS video signals
from CVBSIN input. Connect INT/EXT high to process CVBS video signals from EXTCVBSIN
input.
SmartSleep Logic Input. Connect to logic-high to activate SmartSleep operation.
Exposed Pad. Connect EP to GND. EP is also internally connected to GND.
_______________________________________________________________________________________
9
MAX9513
Typical Operating Characteristics (continued)
(VDD = V SHDN = +3.3V, VSMARTSLEEP = VINT/EXT = GND = 0V. RL = 150Ω to GND. TA = +25°C, unless otherwise noted.)
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
+3.3V
0.1µF
VDD
DVD CHIP
INT/EXT
MAX9513
MICROCONTROLLER
+3.3V
SMARTSLEEP
CONTROL
LOGIC
SHDN
+3.3V
ACTIVE VIDEO
DETECT
LOAD SENSE
CVBS SIGNAL
75Ω
CVBSOUT1
6dB
CVBSOUT/IN
CVBSIN
CURRENT
DAC
BUFFER
LPF
EXTCVBSIN
LOAD SENSE
CLAMP
6dB
CVBSOUT2
75Ω
TO Y/C SEPARATION
0.1µF
GND
Figure 1. Typical Application Circuit for Portable DVD Player
Detailed Description
In the typical application circuit shown in Figure 1, the
current DAC generates an internal video signal. When the
internal signal source is selected, the MAX9513 filters the
signal and then drives the video connectors through a
75Ω back termination resistor. When the external video
source is selected, the MAX9513 selects the external
video signal (EXTCVBSIN), then clamps, filters, and
amplifies it. The output stage of the amplifier connected
to CVBSOUT1 becomes high impedance. The n-channel
switch at CVBSOUT1 turns on, thereby converting the
back termination resistor into an input termination resistor.
10
SmartSleep Feature
The SmartSleep feature is activated when the SMARTSLEEP
input is connected to logic-high. The SmartSleep feature
provides intelligent power management by selectively
disabling the filters and output amplifiers based on
the presence of video signals or loads attached to the
outputs. If the SmartSleep feature is not activated and
the part is not in shutdown, the filters and output amplifiers completely turn on, regardless of whether there is
a video signal at the CVBSIN input and whether there
are loads connected at the outputs. SmartSleep only
works with DC-coupled loads.
______________________________________________________________________________________
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
video signal is present. When the MAX9513 detects a
video signal with sync at the CVBSIN input, the control
logic enters the active-detect mode and enables the
load-sense circuitry (Figure 3). The supply current is
typically 17µA.
If an output load is not connected to any amplifier, the
MAX9513 remains in active-detect mode. Eight times per
second, each load-sense circuit checks for a load by
connecting an internal 15kΩ pullup resistor to the output
for 1ms. If the output is pulled up, no load is present. If
the output stays low, a load is connected.
Active-Detect Mode
The active video detect circuit slices the CVBSIN signal
at 4.7% of the power supply (155mV for a 3.3V supply).
If the transitions occur at a rate of 14.3kHz or higher, a
+3.3V
7µA
VDD
INT/EXT
MAX9513
CONTROL
LOGIC
SMARTSLEEP
+3.3V
SHDN
ACTIVE VIDEO
DETECT
LOAD SENSE
OFF
6dB
CVBSIN
CURRENT
DAC
+3.3V
OFF
CVBS1
LPF
LOAD SENSE
OFF
EXTCVBSIN
75Ω
OFF
BUFFER
NO VIDEO
SIGNAL
CVBSOUT1
OFF
CLAMP
OFF
6dB
CVBSOUT2
75Ω
CVBS2
OFF
GND
Figure 2. Standby Mode
______________________________________________________________________________________
11
MAX9513
Standby Mode
In standby mode, the filter and output amplifiers are off,
and only the active video detect circuit is operational.
Quiescent current consumption is approximately 7µA
(Figure 2). The active video detect circuit checks
whether sync is present on the CVBSIN signal. If no
sync is detected, the device remains in standby mode.
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
+3.3V
17µA
VDD
INT/EXT
MAX9513
CONTROL
LOGIC
SMARTSLEEP
+3.3V
SHDN
LOAD SENSE
ACTIVE VIDEO
DETECT
75Ω
CVBS 1
OFF
CVBSIN
CURRENT
DAC
CVBSOUT1
6dB
BUFFER
OFF
+3.3V
OFF
EXTCVBSIN
VIDEO SIGNAL
PRESENT
NO
LOAD
LPF
LOAD SENSE
CLAMP
OFF
6dB
0
TO
50mV
CVBSOUT2
75Ω
OFF
GND
Figure 3. Active-Detect Mode with No Output Loads
12
______________________________________________________________________________________
CVBS 2
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
output is sourcing current during a horizontal line time.
If no sourcing current is detected within one horizontal
line time (approximately 64µs), the load has been disconnected and the amplifier returns to active-detect
mode. If, at any time, the input video signal is removed,
the MAX9513 returns to standby mode.
If the SmartSleep feature is not activated and the part is
not in shutdown, the filters and amplifiers completely
turn on, regardless of whether there is a video signal at
the CVBSIN input and whether there are loads connected at the outputs.
When an amplifier is on, it continually checks if the load
has been disconnected by detecting if the amplifier
+3.3V
2.9mA PLUS
LOAD CURRENT
VDD
INT/EXT
MAX9513
CONTROL
LOGIC
SMARTSLEEP
+3.3V
SHDN
LOAD SENSE
ACTIVE VIDEO
DETECT
CVBSOUT1
6dB
75Ω
CVBS1
CVBSIN
CURRENT
DAC
75Ω
BUFFER
+3.3V
LPF
EXTCVBSIN
VIDEO SIGNAL
PRESENT
LOAD SENSE
CLAMP
OFF
0
TO
50mV
6dB
CVBSOUT2
75Ω
CVBS2
OFF
GND
Figure 4. Full-Operation Mode with CVBSOUT1 Loaded
______________________________________________________________________________________
13
MAX9513
Full-Operation Mode
If a load is connected to an output, the corresponding
filter and amplifier turn on and remain on until the output load is disconnected. In full-operation mode,
SmartSleep intelligently reduces the supply current
based on the input signal presence and output loading.
Figures 4, 5, and 6 show which portions of the
MAX9513 turn on and which remain off with different
load configurations.
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
+3.3V
2.9mA PLUS
LOAD CURRENT
VDD
INT/EXT
MAX9513
CONTROL
LOGIC
SMARTSLEEP
+3.3V
SHDN
LOAD SENSE
ACTIVE VIDEO
DETECT
CVBSOUT1
6dB
CVBSIN
CURRENT
DAC
LPF
EXTCVBSIN
VIDEO SIGNAL
PRESENT
CVBS1
OFF
BUFFER
+3.3V
75Ω
LOAD SENSE
CLAMP
OFF
0
TO
50mV
6dB
CVBSOUT2
75Ω
75Ω
GND
Figure 5. Full-Operation Mode with CVBSOUT2 Loaded
14
CVBS2
______________________________________________________________________________________
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
MAX9513
+3.3V
5.3mA PLUS
LOAD CURRENT
VDD
INT/EXT
MAX9513
CONTROL
LOGIC
SMARTSLEEP
+3.3V
SHDN
LOAD SENSE
ACTIVE VIDEO
DETECT
CVBSOUT1
6dB
75Ω
CVBS1
CVBSIN
CURRENT
DAC
75Ω
BUFFER
+3.3V
LPF
EXTCVBSIN
VIDEO SIGNAL
PRESENT
LOAD SENSE
CLAMP
OFF
0
TO
50mV
6dB
CVBSOUT2
75Ω
CVBS2
75Ω
GND
Figure 6. Full-Operation Mode with Both Outputs Loaded
______________________________________________________________________________________
15
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
Internal Mode Versus External Mode
Internal Mode
Set the INT/EXT control input low for internal mode. The
MAX9513 processes video signals from an internal
source such as a DVD chip (Figure 7). The 2:1 multiplexer selects the video signal on CVBSIN. The
EXTCVBSIN video signal is ignored.
External Mode
Set the INT/EXT control input high for external mode.
The 2:1 multiplexer selects the video signal on
EXTCVBSIN (Figure 8). The CVBSIN signal is ignored.
The block drawing of the MAX9513 in Figure 8 shows
which circuits are off while in external mode.
SmartSleep does not function in external mode, and the
SMARTSLEEP input is ignored.
+3.3V
0.1µF
11.6mA PLUS
LOAD CURRENT
VDD
LOGICLOW
DVD CHIP
INT/EXT
MAX9513
MICROCONTROLLER
SMARTSLEEP
+3.3V
CONTROL
LOGIC
SHDN
ACTIVE VIDEO
DETECT
LOAD SENSE
CVBSOUT1
6dB
75Ω
CVBS1
CVBSIN
CURRENT
DAC
BUFFER
LPF
EXTCVBSIN
LOAD SENSE
CLAMP
OFF
6dB
CVBSOUT2
75Ω
0.1µF
GND
Figure 7. Internal Mode Operation for Portable DVD Application
16
______________________________________________________________________________________
Y/C SEPARATION
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
MAX9513
+3.3V
0.1µF
4.3mA PLUS LOAD
CURRENT
VDD
DVD CHIP
LOGICHIGH
INT/EXT
MAX9513
MICROCONTROLLER +3.3V SMARTSLEEP
+3.3V
CONTROL
LOGIC
SHDN
ACTIVE VIDEO
DETECT
LOAD SENSE
OFF
6dB
CVBSIN
CURRENT
DAC
CVBSOUT1
75Ω
CVBSIN
75Ω
VIDEO
SOURCE
OFF
BUFFER
LPF
EXTCVBSIN
LOAD SENSE
CLAMP
6dB
0.1µF
CVBSOUT2
75Ω
TO Y/C SEPARATION
GND
Figure 8. External Mode Operation for Portable DVD Application
______________________________________________________________________________________
17
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
Inputs
Shutdown
The MAX9513 CVBSIN input should be directly connected to the output of the video current DAC. DC-coupling ensures that the input signals are ground
referenced such that the sync tip of CVBSIN is within
50mV of ground.
When SHDN is low, the MAX9513 typically draws less
than 10nA supply current. All the amplifier outputs
become high impedance. The effective output resistance at the video outputs is 28kΩ, due to the internal
feedback resistors to ground.
The EXTCVBSIN input can only handle signals with a
sync pulse, such as composite video and luma.
Because the DC level of an external video input signal
is unknown, the external video signal is AC-coupled
through a 0.1µF capacitor, and a sync tip clamp sets
the internal DC level of the MAX9513. A 2:1 multiplexer
under the control of the INT/EXT input selects either the
signal at CVBSIN or EXTCVBSIN.
Applications Information
Video Reconstruction Filter
The MAX9513 filter passband is 6.75MHz, which makes
the device suitable for the higher bandwidth video signals from a DVD chip. Broadcast video signals actually
require less bandwidth because of channel limitations:
NTSC signals have a 4.2MHz bandwidth, and PAL signals have a 5MHz bandwidth. Video signals from a DVD
player are not channel limited; therefore, the bandwidth
of DVD video signals can push right against the Nyquist
limit of 6.75MHz. (Recommendation ITU-R BT.601-5
specifies 13.5MHz as the sampling rate for standarddefinition video). Therefore, the maximum bandwidth of
the signal is 6.75MHz. To reduce the filtering requirements, most modern video systems oversample the
input by two times, thus clocking the video current DAC
at 27MHz.
Outputs
The video output amplifiers can both source and sink
load current, allowing output loads to be DC- or ACcoupled. The amplifier output stage needs approximately 300mV of headroom from either supply rail. The
MAX9513 has an internal level-shift circuit that positions
the sync tip at approximately 300mV at the output.
If the supply voltage is greater than 3.135V (5% below
a 3.3V supply), each amplifier can drive two DC-coupled video loads to ground. If the supply is less than
3.135V, each amplifier can drive only one DC-coupled
or AC-coupled video load.
18
Reducing Power Consumption
in the Video DACs
CVBSIN has a high-impedance input buffer and can
work with source resistances as high as 300Ω. To
reduce power dissipation in the video DACs, the DAC
output resistor can be scaled up in value. The reference
resistor that sets the reference current inside the video
DACs must also be similarly scaled up. For instance, if
the output resistor is 37.5Ω, the DAC must source
26.7mA when the output is 1V. If the output resistor is
increased to 300Ω, the DAC only needs to source
3.33mA when the output is 1V.
There is parasitic capacitance from the DAC output to
ground. That capacitance in parallel with the DAC output resistor forms a pole that can potentially roll off the
frequency response of the video signal. For example,
300Ω in parallel with 50pF creates a pole at 10.6MHz.
To minimize this capacitance, reduce the area of the
signal trace attached to the DAC output as much as
possible, and place the MAX9513 as close to the video
DAC outputs as possible.
AC-Coupling the Outputs
The outputs can be AC-coupled since the output stage
can source and sink current as shown in Figure 9.
Coupling capacitors should be 220µF or greater to keep
the highpass filter formed by the 150Ω equivalent resistance of the video transmission line to a corner frequency of 4.8Hz or below. The frame rate of PAL systems is
25Hz, and the frame rate of NTSC systems is 30Hz. The
corner frequency should be well below the frame rate.
SmartSleep only works with DC-coupled loads.
Power-Supply Bypassing and Ground
The MAX9513 operates from a single-supply voltage
down to 2.7V, allowing for low-power operation. Bypass
VDD to GND with a 0.1µF capacitor. Place all external
components as close as possible to the device.
______________________________________________________________________________________
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
MAX9513
+3.3V
0.1µF
VDD
INT/EXT
MAX9513
CONTROL
LOGIC
SMARTSLEEP
SHDN
+3.3V
ACTIVE VIDEO
DETECT
LOAD SENSE
CVBSOUT1
6dB
CURRENT
DAC
75Ω
CVBS1
CVBSIN
220µF
BUFFER
LPF
EXTCVBSIN
LOAD SENSE
OFF
6dB
CLAMP
CVBSOUT2
75Ω
CVBS2
220µF
GND
Figure 9. AC-Coupled Outputs
______________________________________________________________________________________
19
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
N.C.
N.C.
CVBSOUT1
CVBSOUT2
MAX9513
Pin Configurations
12
11
10
9
TOP VIEW
VDD 13
GND
8
N.C.
7
INT/EXT 14
MAX9513
SMARTSLEEP 15
1
2
3
4
GND
GND
CVBSIN
+
VDD
GND 16
SMARTSLEEP 1
SHDN
5
EXTCVBSIN
16 INT/EXT
GND 2
15 VDD
VDD 3
14 N.C.
GND 4
6
+
MAX9513
13 N.C.
GND 5
12 CVBSOUT1
CVBSIN 6
11 CVBSOUT2
10 GND
EXTCVBSIN 7
SHDN 8
9
N.C.
QSOP
THIN QFN
(3mm x 3mm)
Block Diagrams (continued)
INT/EXT
MAX9513
SMARTSLEEP
CONTROL
LOGIC
300mV
TO
400mV
SHDN
LOAD SENSE
ACTIVE VIDEO
DETECT
0
TO
50mV
CVBSOUT1
6dB
CVBSIN
BUFFER
LPF
EXTCVBSIN
CLAMP
LOAD SENSE
6dB
CVBSOUT2
Chip Information
PROCESS: BiCMOS
20
______________________________________________________________________________________
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
12x16L QFN THIN.EPS
(NE - 1) X e
E
MARKING
E/2
D2/2
(ND - 1) X e
D/2
AAAA
e
CL
D
D2
k
CL
b
0.10 M C A B
E2/2
L
E2
0.10 C
CL
CL
0.08 C
A
A2
A1
L
L
e
e
PACKAGE OUTLINE
8, 12, 16L THIN QFN, 3x3x0.8mm
21-0136
G
1
2
______________________________________________________________________________________
21
MAX9513
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
MAX9513
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PKG
8L 3x3
12L 3x3
16L 3x3
EXPOSED PAD VARIATIONS
REF. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX.
A
0.70
0.75
0.80
0.70
0.75
0.80
0.70
0.75
0.80
b
0.25
0.30 0.35
0.20
0.25 0.30
0.20 0.25
0.30
D
2.90
3.00
2.90
3.00
2.90 3.00
3.10
E
e
2.90 3.00 3.10
0.65 BSC.
2.90 3.00 3.10
0.50 BSC.
2.90 3.00 3.10
0.50 BSC.
L
0.35
0.45
0.30
N
0.55
3.10
0.75
8
0.55
ND
2
3
2
3
0
A2
k
0.25
0.02
0.65
12
NE
A1
3.10
0.05
0.20 REF
-
0
0.25
0.02
0.40
0.50
16
4
4
0.05
0.20 REF
-
0
0.25
0.02
0.05
0.20 REF
-
PKG.
CODES
D2
E2
NOM. MAX.
PIN ID
JEDEC
DOWN
BONDS
ALLOWED
MIN.
NOM.
MAX.
MIN.
TQ833-1
0.25
0.70
1.25
0.25
0.70
1.25
0.35 x 45°
WEEC
T1233-1
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45°
WEED-1
NO
T1233-3
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45°
WEED-1
YES
YES
NO
T1233-4
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45°
WEED-1
T1633-1
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45°
WEED-2
NO
T1633-2
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45°
WEED-2
YES
T1633F-3
0.65
0.80
0.95
0.65
0.80
0.95
0.225 x 45°
WEED-2
N/A
T1633FH-3
0.65
0.80
0.95
0.65
0.80
0.95
0.225 x 45°
WEED-2
N/A
T1633-4
0.95
1.10
1.25
0.95
1.10
1.25
0.35 x 45°
WEED-2
NO
NOTES:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994.
ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES.
N IS THE TOTAL NUMBER OF TERMINALS.
THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO
JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED
WITHIN THE ZONE INDICATED. THE TERMINAL #1 IDENTIFIER MAY BE EITHER A MOLD OR
MARKED FEATURE.
DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.20 mm AND 0.25 mm
FROM TERMINAL TIP.
ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.
DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.
COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
DRAWING CONFORMS TO JEDEC MO220 REVISION C.
MARKING IS FOR PACKAGE ORIENTATION REFERENCE ONLY.
NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY.
PACKAGE OUTLINE
8, 12, 16L THIN QFN, 3x3x0.8mm
21-0136
22
______________________________________________________________________________________
G
2
2
CVBS Video Filter Amplifier with SmartSleep
and Bidirectional Video Support
QSOP.EPS
PACKAGE OUTLINE, QSOP .150", .025" LEAD PITCH
21-0055
F
1
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 23
© 2006 Maxim Integrated Products
M. Quijanoy
is a registered trademark of Maxim Integrated Products, Inc.
MAX9513
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)