MAXIM MAX9502MELT-T

19-3674; Rev 0; 5/05
2.5V Video Amplifier with Reconstruction Filter
The MAX9502 small, low-power video amplifier with
integrated reconstruction filter operates from a supply
voltage as low as 2.5V. The small size and the low minimum supply voltage make the MAX9502 ideal for
portable applications such as mobile phones, digital
still cameras, and camcorders.
The MAX9502 DC-couples the input and the output,
resulting in a very small solution. The MAX9502 input can
be directly connected to the output of a video digital-toanalog converter (DAC). The reconstruction filter is implemented as a 4th-order Chebyshev with a minimum
passband of 5.5MHz, 3dB attenuation at 8MHz, and
55dB attenuation at 27MHz.
The output amplifier provides a closed-loop gain of
+6dB (MAX9502G) or +12dB (MAX9502M), and can
drive a 2VP-P video signal into a 150Ω load to ground.
The output signal is level-shifted so the sync tip is
110mV (typ) above ground.
The MAX9502 operates from a 2.5V to 3.6V single supply
and consumes only 5.3mA quiescent supply current.
An active-low shutdown mode reduces the supply
current to 0.01µA.
The MAX9502 is available in tiny 6-pin µDFN (1mm x
1.5mm x 0.8mm) and 5-pin SC70 packages. The
device is specified over the -40°C to +85°C extended
temperature range.
Features
♦ Tiny 6-Pin µDFN (1mm x 1.5mm x 0.8mm) and
5-Pin SC70 Packages
♦ DC-Coupled Input and Output Save Board Space
♦ 4-Pole Chebyshev Filter
♦ 5.5MHz Passband
♦ 55dB Attenuation at 27MHz
♦ 0.01µA Low-Current Shutdown Mode
♦ 2.5V to 3.6V Single-Supply Operation
♦ Video Amplifier with Fixed Gains of +6dB
(MAX9502G) or +12dB (MAX9502M)
Ordering Information
PART*
PIN-PACKAGE
GAIN
(dB)
TOP
MARK
MAX9502GEXK-T
5 SC70-5
+6
ARV
MAX9502GELT-T
6 µDFN-6 (L611-1)
+6
AU
MAX9502MEXK-T
5 SC70-5
+12
ARW
MAX9502MELT-T
6 µDFN-6 (L611-1)
+12
AV
*All devices are specified over the -40°C to +85°C operating
temperature range.
Applications
Mobile Phones/Smartphones
Typical Operating Circuit appears at end of data sheet.
Digital Still Cameras
Portable Media Players
Camcorders
Pin Configurations
Other Portable Video Amplifiers
PRODUCT
FEATURES
MAX9503
DirectDrive™, LPF, DC-coupled
input/output, 50dB at 27MHz, TQFN
MAX9505
DirectDrive, LPF, DC-coupled input/output,
50dB at 27MHz analog switch, TQFN
MAX4090
Video amplifier, input clamp, µDFN,
SOT23, SC70
MAX9504
Video amplifier, 2 DC-coupled loads,
optional DC offset bias, µDFN, SOT23
TOP VIEW
OUT
N.C.
VCC
6
5
4
1
2
1
GND 2
MAX9502
IN
IN
3
5
OUT
4
VCC
MAX9502
SHDN 3
GND SHDN
µDFN
SC70
________________________________________________________________ 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
MAX9502
General Description
MAX9502
2.5V Video Amplifier with Reconstruction Filter
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..............................................................-0.3V to +4V
SHDN, IN, OUT to GND..............................-0.3V to (VCC + 0.3V)
OUT Short-Circuit Duration to VCC, GND……............Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)……….. .247mW
6-Pin µDFN (derate 2.1mW/°C above +70°C)………...168mW
Operating Temperature Range ...........................-40°C to +85°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.
DC ELECTRICAL CHARACTERISTICS
(VCC = SHDN = 3.0V, GND = 0V, no load, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
Supply Voltage Range
SYMBOL
CONDITIONS
VCC
Guaranteed by PSRR
Quiescent Supply Current
ICC
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V, SHDN = VCC
Shutdown Supply Current
ISHDN
VSHDN = 0V
Input Voltage Range
VIN
MIN
TYP
MAX
UNITS
3.6
V
5.3
9
mA
0.01
1
µA
2.5
Guaranteed by DC
voltage gain (MAX9502G)
VCC = 2.5V
0
VCC = 3.0V
0
1.05
1.2
Guaranteed by DC
voltage gain (MAX9502M)
VCC = 2.5V
0
0.525
VCC = 3.0V
0
0.6
Input Current
IIN
VIN = 0V
3.5
Input Resistance
RIN
∆VIN/∆IIN
17
DC Voltage Gain (Note 2)
AV
RL = 150Ω to GND,
VCC = 2.5V to 3V
Output Sync-Tip Level
VSTIP
MAX9502G,
RL = 150Ω to GND
Output Voltage Swing
VOUT
MAX9502M,
RL = 150Ω to GND
Output Short-Circuit Current
Threshold
Output Resistance
Shutdown Output Impedance
DC Power-Supply Rejection Ratio
ISC
PSRRDC
5.5
6
6.5
11.5
12
12.5
110
230
VCC = 2.5V,
0 ≤ VIN ≤ 1.05V
1.97
2.1
2.23
VCC = 3.0V,
0 ≤ VIN ≤ 1.2V
2.26
2.4
2.54
VCC = 2.5V,
0 ≤ VIN ≤ 0.525V
1.97
2.1
2.23
VCC = 3.0V,
0 ≤ VIN ≤ 0.6V
2.26
2.4
2.54
dB
mV
VP-P
Sourcing (Note 3)
VSHDN = 0V
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V
µA
MΩ
MAX9502M
ROUT
ROUT(OFF)
10
MAX9502G
Measured at OUT, VIN = 0V,
RL = 150Ω to GND
V
50
95
mA
0.15
Ω
4
kΩ
90
dB
LOGIC INPUTS (SHDN)
Logic-Low Level
VIL
Logic-High Level
VIH
Logic Input Current
IIL
2
0.8
2.0
SHDN = GND and VCC
_______________________________________________________________________________________
V
V
1
µA
2.5V Video Amplifier with Reconstruction Filter
MAX9502
AC ELECTRICAL CHARACTERISTICS
(VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
VOUT = 2VP-P, f = 100kHz to 5.5MHz,
flatness is referred to 100kHz
Passband Flatness
Attenuation
fdt
VOUT = 2VP-P, attenuation is
referred to 100kHz
-1
f = 8MHz
f = 27MHz
TYP
3
35
55
MAX
UNITS
+1
dB
dB
Power-Supply Rejection Ratio
PSRR
f = 100kHz
56
dB
Output Impedance
ZOUT
VOUT = 1.5V DC; f = 5MHz
2.5
Ω
MAX9502G
0.4
MAX9502M
0.4
MAX9502G
0.4
MAX9502M
0.4
2T Pulse-to-Bar K Rating
2T = 250ns; bar time is 18µs; the beginning
2.5% and the ending 2.5% of the bar time
are ignored
0.2
K%
2T Pulse Response
2T = 250ns
0.3
K%
2T Bar Response
2T = 250ns; bar time is 18µs; the beginning
2.5% and the ending 2.5% of the bar time
are ignored
0.4
K%
Nonlinearity
5-step staircase
Differential Gain Error
DG
NTSC, VOUT = 2VP-P
Differential Phase Error
DP
NTSC, VOUT = 2VP-P
%
degrees
0.4
%
Line Time Distortion
0
%
Field Time Distortion
0
%
Group-Delay Variation
Peak Signal to RMS Noise
Enable Time
Disable Time
∆(dϕ/dω)
SNR
tON
tOFF
f = 100kHz to 5.5MHz
VOUT = 2VP-P, 100kHz to
5MHz
VSHDN = 3V, VOUT settled to
within 1% of the final voltage
VSHDN = 0V, VOUT settled to
below 1% of the output
voltage
MAX9502G
30
MAX9502M
30
MAX9502G
68
MAX9502M
65
MAX9502G
(VIN = 1V)
800
MAX9502M
(VIN = 0.5V)
800
MAX9502G
(VIN = 1V)
220
MAX9502M
(VIN = 0.5V)
175
ns
dB
ns
ns
Note 1: All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by design.
Note 2: DC voltage gain (AV) is a two-point measurement in which the output voltage swing is divided by the input voltage swing.
Note 3: Short-circuit current is the trip current for the protection. During the protection, OUT is switched alternatively on and off.
_______________________________________________________________________________________
3
Typical Operating Characteristics
(VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
10
10
VOUT = 100mVP-P
8
-10
-20
-30
-40
RESPONSE (dB)
0
RESPONSE (dB)
-10
-20
-30
-50
6
5
4
-50
VOUT = 100mVP-P
VOUT = 100mVP-P
-60
3
-60
0.1
1
10
100
0.1
1
10
0.1
100
10
1
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX9502M
SMALL-SIGNAL GAIN FLATNESS
MAX9502G
LARGE-SIGNAL BANDWIDTH
MAX9502M
LARGE-SIGNAL BANDWIDTH
14
20
10
10
0
RESPONSE (dB)
12
11
RESPONSE (dB)
0
13
-10
-20
-30
-30
VOUT = 2VP-P
VOUT = 2VP-P
9
-60
-60
0.1
-20
-50
-50
VOUT = 100mVP-P
-10
-40
-40
10
MAX9502 toc06
20
MAX9502 toc04
15
1
10
0.1
1
10
0.1
100
1
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX9502G
LARGE-SIGNAL GAIN FLATNESS
MAX9502M
LARGE-SIGNAL GAIN FLATNESS
MAX9502G
GROUP DELAY
8
200
MAX9502 toc08
15
MAX9502 toc07
9
14
100
MAX9502 toc09
RESPONSE (dB)
7
-40
MAX9502 toc05
RESPONSE (dB)
0
9
MAX9502 toc02
20
MAX9502 toc01
20
MAX9502G
SMALL-SIGNAL GAIN FLATNESS
MAX9502M
SMALL-SIGNAL BANDWIDTH
MAX9502 toc03
MAX9502G
SMALL-SIGNAL BANDWIDTH
180
160
6
13
DELAY (ns)
7
RESPONSE (dB)
RESPONSE (dB)
MAX9502
2.5V Video Amplifier with Reconstruction Filter
12
5
11
4
10
140
120
100
80
60
VOUT = 2VP-P
VOUT = 2VP-P
3
9
0.1
1
FREQUENCY (MHz)
4
10
40
0.1
1
FREQUENCY (MHz)
10
0.1
1
FREQUENCY (MHz)
_______________________________________________________________________________________
10
2.5V Video Amplifier with Reconstruction Filter
MAX9502G
POWER-SUPPLY REJECTION RATIO
-10
-20
RESPONSE (dB)
140
120
100
60
40
0.1
-40
-50
-60
-30
-40
-50
-60
-70
-80
-80
-90
-90
-100
0.0001
10
1
0.001
0.01
0.1
1
-100
0.0001
10
0.001
0.01
0.1
10
1
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT
vs. SHDN INPUT VOLTAGE
SHUTDOWN LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
SUPPLY CURRENT (mA)
6.0
MAX9502G
MAX9502M
5.0
4.5
4.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3.5
3.0
-15
10
35
60
85
MAX9502 toc15
2.5
2.0
1.5
1.0
0.5
0
0
0.5
1.0
1.5
2.0
2.5
3.0
2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
TEMPERATURE (°C)
SHDN INPUT VOLTAGE (V)
SUPPLY VOLTAGE (V)
MAX9502G
VOLTAGE GAIN vs. TEMPERATURE
MAX9502M
VOLTAGE GAIN vs. TEMPERATURE
MAX9502G
DIFFERENTIAL GAIN AND PHASE
6.3
GAIN (dB)
6.1
12.3
5.9
5.7
12.1
11.9
11.7
5.5
11.5
-15
10
35
TEMPERATURE (°C)
60
85
-40
-15
10
35
60
85
0.4
0.2
0.1
-0.1
-0.3
-0.4
MAX9502 toc18
12.5
MAX9502 toc16
6.5
-40
VSHDN = RISING
DIFFERENTIAL GAIN (%)
-40
3.0
DIFFERENTIAL PHASE (deg)
5.5
VSHDN = RISING
SHUTDOWN LOGIC THRESHOLD (V)
6.0
5.5
5.0
MAX9502 toc13
6.5
MAX9502 toc14
FREQUENCY (MHz)
7.0
SUPPLY CURRENT (mA)
-20
-70
80
GAIN (dB)
-30
MAX9502 toc17
DELAY (ns)
160
-10
RESPONSE (dB)
180
0
MAX9502 toc11
0
MAX9502 toc10
200
MAX9502M
POWER-SUPPLY REJECTION RATIO
MAX9502 toc12
MAX9502M
GROUP DELAY
1
2
3
4
5
6
7
1
2
3
4
5
6
7
0.8
0.4
0
-0.4
-0.8
TEMPERATURE (°C)
_______________________________________________________________________________________
5
MAX9502
Typical Operating Characteristics (continued)
(VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
Typical Operating Characteristics (continued)
(VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
MAX9502G
2T RESPONSE
MAX9502 toc20
0.4
MAX9502 toc19
DIFFERENTIAL GAIN (%)
MAX9502M
DIFFERENTIAL GAIN AND PHASE
DIFFERENTIAL PHASE (deg)
MAX9502
2.5V Video Amplifier with Reconstruction Filter
0.2
0
IN
200mV/div
-0.2
-0.4
1
2
3
4
5
6
7
0.8
OUT
400mV/div
0.4
0
-0.4
-0.8
1
2
3
4
5
6
7
100ns/div
MAX9502G
MODULATED 12.5T RESPONSE
MAX9502M
2T RESPONSE
MAX9502 toc22
MAX9502 toc21
IN
100mV/div
IN
200mV/div
OUT
400mV/div
OUT
400mV/div
100ns/div
400ns/div
MAX9502M
MODULATED 12.5T RESPONSE
MAX9502G
NTC-7 COMPOSITE RESPONSE
MAX9502 toc23
MAX9502 toc24
IN
100mV/div
IN
500mV/div
0V
OUT
1V/div
OUT
400mV/div
0V
400ns/div
6
10µs/div
_______________________________________________________________________________________
2.5V Video Amplifier with Reconstruction Filter
MAX9502M
NTC-7 COMPOSITE RESPONSE
MAX9502G
MULTIBURST RESPONSE
MAX9502 toc25
MAX9502M
MULTIBURST RESPONSE
MAX9502 toc27
MAX9502 toc26
IN
250mV/div
0V
IN
500mV/div
0V
IN
250mV/div
0V
OUT
1V/div
OUT
1V/div
OUT
1V/div
0V
0V
0V
10µs/div
10µs/div
10µs/div
MAX9502G
FIELD SQUARE-WAVE RESPONSE
MAX9502M
FIELD SQUARE-WAVE RESPONSE
MAX9502 toc28
MAX9502 toc29
IN
500mV/div
IN
250mV/div
0V
0V
OUT
1V/div
OUT
1V/div
0V
0V
2ms/div
2ms/div
Pin Description
PIN
NAME
FUNCTION
µDFN
SC70
1
1
2
2
GND
3
3
SHDN
4
4
VCC
Positive Power Supply
5
—
N.C.
No Connection. Not internally connected.
6
5
OUT
Video Output
IN
Video Input
Ground
Active-Low Shutdown Input. Connect to GND to shutdown.
_______________________________________________________________________________________
7
MAX9502
Typical Operating Characteristics (continued)
(VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Detailed Description
The MAX9502 filters and amplifies the video DAC output
in applications such as digital still cameras and mobile
phones. The MAX9502 consists of a lowpass filter and an
output video buffer capable of driving a standard 150Ω
video load to ground. The MAX9502G output buffer provides a fixed gain of +6dB, while the MAX9502M output
buffer provides a fixed gain of +12dB.
signal with a sync tip from 0 to 50mV and the MAX9502M
accepts a composite video signal with a sync tip from 0
to 25mV. A typical current-output DAC that operates
from a single supply usually creates a composite video
signal with a sync tip very close to ground. Hence, the
DAC output can be directly connected to the MAX9502
input. Keep the board trace as short as possible to minimize parasitic stray capacitance and prevent unintentional high-frequency attenuation.
Filter
The MAX9502 contains a 4th-order Chebyshev reconstruction filter. The Chebyshev-type response features
a 0.4dB flat passband for NTSC and PAL signals. The
stopband offers 55dB (typ) of attenuation at 27MHz
and above (see the Typical Operating Characteristics).
Output Amplifier
The MAX9502G features a +6dB gain, while the
MAX9502M features a +12dB gain. Operating from a
2.5V to 3.0V supply, the output amplifier is able to drive a
2V signal into a 150Ω video load to ground. Operating
from a 3.0V to 3.6V supply, the output amplifier is able to
drive a 2.4VP-P signal into a 150Ω video load to ground.
The output is typically offset 110mV above ground to
guarantee linear operation of the amplifier. The MAX9502
output only sources current; all loads should be connected to ground.
Short-Circuit Protection
The MAX9502 typical application circuit includes a 75Ω
back-termination resistor that limits short-circuit currents
for an external short applied at the video output. The
MAX9502 features internal output short-circuit protection
to prevent device damage in prototyping and applications where the amplifier output can be directly shorted.
Short-circuit protection activates if the output is short-circuited and the output current exceeds 95mA. During
short-circuit protection, the output of the MAX9502 is
shut off for 12µs and then turns on for 0.8µs. If the short
is still present, the MAX9502 output shuts off again.
Extended short circuits result in a pulsed output. The
device resumes normal operation after the short is
removed.
Output Considerations
The MAX9502 output must be DC-coupled. No AC-coupling capacitors are allowed. The MAX9502 connects
directly to the video cable through a 75Ω series backtermination resistor. The other end of the cable should
be properly terminated with a 75Ω resistor as well.
Because of this configuration, the peak-to-peak amplitude as well as the DC level of the signal is divided by
two. The MAX9502 output signal is level-shifted up so
the sync tip is around 110mV.
Power-Supply Bypassing and Layout
Considerations
The MAX9502 operates from a single-supply voltage
down to 2.5V, allowing for low-power consumption.
Bypass VCC to GND with a 0.1µF capacitor. Place all
external components as close to the device as possible.
Typical Operating Circuit
VCC
0.1µF
ON
OFF
MAX9502
GAIN = +6dB
MAX9502G
SHDN
SHUTDOWN
CIRCUIT
GAIN = +12dB
MAX9502M
IN
LOWPASS
FILTER
VIDEO
ASIC
VIDEO
DAC
VIDEO AMP
OUT
75Ω
Z0 = 75Ω
Applications Information
75Ω TELEVISION
Input Considerations
The MAX9502 input is DC-coupled. When the supply
voltage is between a 2.5V and 3V supply, the input voltage range extends from ground to 1.05V for the
MAX9502G and from ground to 0.525V for the
MAX9502M. When the supply voltage is between 3V and
3.6V, the input voltage range extends from ground to
1.2V for the MAX9502G and from ground to 0.6V for the
MAX9502M. The MAX9502G accepts a composite video
8
GND
Chip Information
PROCESS: BICMOS
_______________________________________________________________________________________
2.5V Video Amplifier with Reconstruction Filter
6L UDFN.EPS
3
e
A
b
5
4
6
TOPMARK
2
AAA
PIN 1
INDEX AREA
PIN 1
0.075x45°
L2
L
E
3
1
A1
D
SIDE VIEW
TOP VIEW
A
1
BOTTOM VIEW
b
SECTION A-A
2
A
L1
COMMON DIMENSIONS
MIN.
0.64
-1.45
0.95
0.30
--0.17
A
A1
D
E
L
L1
L2
b
e
NOM.
0.72
0.20
1.50
1.00
0.35
--0.20
0.50 BSC.
MAX.
0.80
-1.55
1.05
0.40
0.08
0.05
0.23
TITLE:
PACKAGE OUTLINE, 6L uDFN, 1.5x1.0x0.8mm
APPROVAL
-DRAWING NOT TO SCALE-
DOCUMENT CONTROL NO.
21-0147
REV.
C
1
1
_______________________________________________________________________________________
9
MAX9502
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.)
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.)
SC70, 5L.EPS
MAX9502
2.5V Video Amplifier with Reconstruction Filter
PACKAGE OUTLINE, 5L SC70
21-0076
C
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.
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.