MAX9502GEXK [MAXIM]
Video Amplifier, 1 Func, BICMOS, PDSO6;
| 型号： | MAX9502GEXK |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Video Amplifier, 1 Func, BICMOS, PDSO6 视频放大器 |
| 文件： | 总10页 (文件大小：404K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-3674; Rev 0; 5/05
2.5V Video Amplifier with Reconstruction Filter
General Description
Features
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 mini-
mum supply voltage make the MAX9502 ideal for
portable applications such as mobile phones, digital
still cameras, and camcorders.
♦ 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
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-to-
analog converter (DAC). The reconstruction filter is imple-
mented as a 4th-order Chebyshev with a minimum
passband of 5.5MHz, 3dB attenuation at 8MHz, and
55dB attenuation at 27MHz.
♦ 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)
The output amplifier provides a closed-loop gain of
+6dB (MAX9502G) or +12dB (MAX9502M), and can
drive a 2V
video signal into a 150Ω load to ground.
P-P
The output signal is level-shifted so the sync tip is
110mV (typ) above ground.
Ordering Information
GAIN
(dB)
TOP
MARK
PART*
PIN-PACKAGE
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.
MAX9502GEXK-T 5 SC70-5
+6
+6
ARV
AU
MAX9502GELT-T 6 µDFN-6 (L611-1)
MAX9502MEXK-T 5 SC70-5
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.
+12
+12
ARW
AV
MAX9502MELT-T 6 µDFN-6 (L611-1)
*All devices are specified over the -40°C to +85°C operating
temperature range.
Applications
Mobile Phones/Smartphones
Digital Still Cameras
Portable Media Players
Camcorders
Typical Operating Circuit appears at end of data sheet.
Pin Configurations
Other Portable Video Amplifiers
PRODUCT
FEATURES
DirectDrive™, LPF, DC-coupled
input/output, 50dB at 27MHz, TQFN
TOP VIEW
MAX9503
OUT
6
N.C.
5
V
CC
IN
GND
1
2
3
5
4
OUT
DirectDrive, LPF, DC-coupled input/output,
50dB at 27MHz analog switch, TQFN
4
MAX9505
MAX4090
MAX9504
MAX9502
Video amplifier, input clamp, µDFN,
SOT23, SC70
MAX9502
1
2
3
SHDN
V
CC
Video amplifier, 2 DC-coupled loads,
optional DC offset bias, µDFN, SOT23
SHDN
IN
GND
µDFN
SC70
________________________________________________________________ Maxim Integrated Products
1
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.
2.5V Video Amplifier with Reconstruction Filter
ABSOLUTE MAXIMUM RATINGS
CC
SHDN, IN, OUT to GND..............................-0.3V to (V
V
to GND..............................................................-0.3V to +4V
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
+ 0.3V)
CC
OUT Short-Circuit Duration to V , GND……............Continuous
CC
Continuous Power Dissipation (T = +70°C)
A
5-Pin SC70 (derate 3.1mW/°C above +70°C)……….. .247mW
6-Pin µDFN (derate 2.1mW/°C above +70°C)………...168mW
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
(V = SHDN = 3.0V, GND = 0V, no load, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C, unless otherwise
CC
A
MIN
MAX A
noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Guaranteed by PSRR
MIN
TYP
MAX
3.6
9
UNITS
V
Supply Voltage Range
Quiescent Supply Current
Shutdown Supply Current
V
2.5
CC
CC
I
V
V
= 0V, 2.5V ≤ V
≤ 3.6V, SHDN = V
CC
5.3
mA
µA
IN
CC
I
= 0V
0.01
1
SHDN
SHDN
V
V
V
V
= 2.5V
0
0
0
0
1.05
1.2
0.525
0.6
10
CC
CC
CC
CC
Guaranteed by DC
voltage gain (MAX9502G)
= 3.0V
= 2.5V
= 3.0V
Input Voltage Range
V
V
IN
Guaranteed by DC
voltage gain (MAX9502M)
Input Current
I
V
= 0V
3.5
17
6
µA
IN
IN
Input Resistance
R
∆V /∆I
MΩ
IN
IN IN
MAX9502G
MAX9502M
5.5
6.5
R = 150Ω to GND,
L
DC Voltage Gain (Note 2)
Output Sync-Tip Level
A
dB
V
V
= 2.5V to 3V
CC
11.5
12
12.5
Measured at OUT, V = 0V,
R = 150Ω to GND
L
IN
V
110
2.1
2.4
2.1
2.4
95
230
2.23
2.54
2.23
2.54
mV
STIP
OUT
V
= 2.5V,
CC
1.97
2.26
1.97
2.26
0 ≤ V ≤ 1.05V
IN
MAX9502G,
R = 150Ω to GND
L
V
= 3.0V,
CC
0 ≤ V ≤ 1.2V
IN
Output Voltage Swing
V
V
P-P
V
= 2.5V,
CC
0 ≤ V ≤ 0.525V
IN
MAX9502M,
R = 150Ω to GND
L
V
= 3.0V,
CC
0 ≤ V ≤ 0.6V
IN
Output Short-Circuit Current
Threshold
I
Sourcing (Note 3)
mA
SC
Output Resistance
R
0.15
4
Ω
OUT
Shutdown Output Impedance
DC Power-Supply Rejection Ratio
LOGIC INPUTS (SHDN)
Logic-Low Level
R
V
V
= 0V
SHDN
kΩ
dB
OUT(OFF)
PSRR
= 0V, 2.5V ≤ V ≤ 3.6V
CC
50
90
DC
IN
V
0.8
1
V
V
IL
Logic-High Level
V
2.0
IH
IL
Logic Input Current
I
SHDN = GND and V
µA
CC
2
_______________________________________________________________________________________
2.5V Video Amplifier with Reconstruction Filter
AC ELECTRICAL CHARACTERISTICS
(V
CC
= SHDN = 3.0V, GND = 0V, R = 150Ω to GND, T = +25°C, unless otherwise noted.) (Note 1)
L A
PARAMETER
SYMBOL
CONDITIONS
= 2V , f = 100kHz to 5.5MHz,
MIN
TYP
MAX
UNITS
V
OUT
P-P
Passband Flatness
Attenuation
-1
+1
dB
flatness is referred to 100kHz
f = 8MHz
3
V
= 2V , attenuation is
OUT
P-P
f
dB
dt
referred to 100kHz
f = 27MHz
35
55
Power-Supply Rejection Ratio
Output Impedance
PSRR
f = 100kHz
56
dB
Z
V
= 1.5V DC; f = 5MHz
OUT
2.5
0.4
0.4
0.4
0.4
Ω
OUT
MAX9502G
MAX9502M
MAX9502G
MAX9502M
Differential Gain Error
Differential Phase Error
DG
DP
NTSC, V
= 2V
%
OUT
OUT
P-P
P-P
NTSC, V
= 2V
degrees
2T = 250ns; bar time is 18µs; the beginning
2.5% and the ending 2.5% of the bar time
are ignored
2T Pulse-to-Bar K Rating
2T Pulse Response
2T Bar Response
0.2
0.3
0.4
K%
K%
K%
2T = 250ns
2T = 250ns; bar time is 18µs; the beginning
2.5% and the ending 2.5% of the bar time
are ignored
Nonlinearity
5-step staircase
0.4
0
%
%
%
Line Time Distortion
Field Time Distortion
0
MAX9502G
30
30
68
65
Group-Delay Variation
∆(dϕ/dω) f = 100kHz to 5.5MHz
= 2V , 100kHz to
ns
MAX9502M
MAX9502G
MAX9502M
V
OUT
P-P
Peak Signal to RMS Noise
SNR
dB
5MHz
MAX9502G
(V = 1V)
IN
800
800
220
175
V
= 3V, V
settled to
SHDN
OUT
Enable Time
Disable Time
t
ns
ns
ON
within 1% of the final voltage
MAX9502M
(V = 0.5V)
IN
MAX9502G
(V = 1V)
IN
V
= 0V, V
settled to
SHDN
OUT
below 1% of the output
voltage
t
OFF
MAX9502M
(V = 0.5V)
IN
Note 1: All devices are 100% production tested at T = +25°C. Specifications over temperature limits are guaranteed by design.
A
Note 2: DC voltage gain (A ) is a two-point measurement in which the output voltage swing is divided by the input voltage swing.
V
Note 3: Short-circuit current is the trip current for the protection. During the protection, OUT is switched alternatively on and off.
_______________________________________________________________________________________
3
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics
(V
CC
= SHDN = 3.0V, GND = 0V, R = 150Ω to GND.)
L
MAX9502G
SMALL-SIGNAL BANDWIDTH
MAX9502G
SMALL-SIGNAL GAIN FLATNESS
MAX9502M
SMALL-SIGNAL BANDWIDTH
20
10
9
8
7
6
5
4
3
20
10
V
= 100mV
P-P
OUT
0
-10
-20
-30
-40
-50
-60
0
-10
-20
-30
-40
-50
-60
V
V
V
= 100mV
P-P
V
= 100mV
P-P
OUT
OUT
0.1
0.1
0.1
1
10
100
0.1
0.1
0.1
1
10
100
10
0.1
0.1
0.1
1
10
100
100
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX9502M
SMALL-SIGNAL GAIN FLATNESS
MAX9502M
LARGE-SIGNAL BANDWIDTH
MAX9502G
LARGE-SIGNAL BANDWIDTH
15
14
13
12
11
10
9
20
10
20
10
0
0
-10
-20
-30
-40
-50
-60
-10
-20
-30
-40
-50
-60
= 100mV
V
= 2V
P-P
OUT
P-P
OUT
V
OUT
= 2V
P-P
1
10
1
10
1
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX9502G
LARGE-SIGNAL GAIN FLATNESS
MAX9502M
LARGE-SIGNAL GAIN FLATNESS
MAX9502G
GROUP DELAY
9
8
7
6
5
4
3
15
14
13
12
11
10
9
200
180
160
140
120
100
80
60
= 2V
V
= 2V
OUT
P-P
OUT P-P
40
1
10
1
1
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
4
_______________________________________________________________________________________
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics (continued)
(V
CC
= SHDN = 3.0V, GND = 0V, R = 150Ω to GND.)
L
MAX9502M
GROUP DELAY
MAX9502G
POWER-SUPPLY REJECTION RATIO
MAX9502M
POWER-SUPPLY REJECTION RATIO
200
180
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
160
140
120
100
80
60
40
0.1
1
10
0.0001 0.001
0.01
0.1
1
10
3.0
85
0.0001 0.001
0.01
0.1
1
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY CURRENT
SHUTDOWN LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. TEMPERATURE
vs. SHDN INPUT VOLTAGE
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3.0
2.5
2.0
1.5
1.0
0.5
0
V
SHDN
= RISING
V
SHDN
= RISING
MAX9502G
MAX9502M
-40
-15
10
35
60
85
0
0.5
1.0
1.5
2.0
2.5
2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
SHDN INPUT VOLTAGE (V)
MAX9502G
VOLTAGE GAIN vs. TEMPERATURE
MAX9502M
MAX9502G
VOLTAGE GAIN vs. TEMPERATURE
DIFFERENTIAL GAIN AND PHASE
6.5
6.3
6.1
5.9
5.7
5.5
12.5
12.3
12.1
11.9
11.7
11.5
0.4
0.2
0.1
-0.1
-0.3
-0.4
1
2
3
4
5
6
7
0.8
0.4
0
-0.4
-0.8
-40
-15
10
35
60
85
-40
-15
10
35
60
1
2
3
4
5
6
7
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics (continued)
(V
CC
= SHDN = 3.0V, GND = 0V, R = 150Ω to GND.)
L
MAX9502M
DIFFERENTIAL GAIN AND PHASE
0.4
MAX9502G
2T RESPONSE
MAX9502 toc20
0.2
0
IN
200mV/div
-0.2
-0.4
1
2
3
4
5
6
7
0.8
0.4
0
OUT
400mV/div
-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
IN
200mV/div
100mV/div
OUT
400mV/div
OUT
400mV/div
400ns/div
100ns/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
10µs/div
6
_______________________________________________________________________________________
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics (continued)
(V
CC
= SHDN = 3.0V, GND = 0V, R = 150Ω to GND.)
L
MAX9502M
NTC-7 COMPOSITE RESPONSE
MAX9502G
MULTIBURST RESPONSE
MAX9502M
MULTIBURST RESPONSE
MAX9502 toc25
MAX9502 toc27
MAX9502 toc26
IN
IN
IN
250mV/div
0V
250mV/div
500mV/div
0V
0V
OUT
OUT
OUT
1V/div
1V/div
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
IN
250mV/div
500mV/div
0V
0V
OUT
OUT
1V/div
1V/div
0V
0V
2ms/div
2ms/div
Pin Description
PIN
NAME
FUNCTION
µDFN
SC70
1
2
3
4
5
6
1
2
IN
Video Input
Ground
GND
SHDN
3
Active-Low Shutdown Input. Connect to GND to shutdown.
Positive Power Supply
4
V
CC
—
5
N.C.
OUT
No Connection. Not internally connected.
Video Output
_______________________________________________________________________________________
7
2.5V Video Amplifier with Reconstruction Filter
signal with a sync tip from 0 to 50mV and the MAX9502M
Detailed Description
accepts a composite video signal with a sync tip from 0
The MAX9502 filters and amplifies the video DAC output
to 25mV. A typical current-output DAC that operates
in applications such as digital still cameras and mobile
from a single supply usually creates a composite video
phones. The MAX9502 consists of a lowpass filter and an
signal with a sync tip very close to ground. Hence, the
output video buffer capable of driving a standard 150Ω
DAC output can be directly connected to the MAX9502
video load to ground. The MAX9502G output buffer pro-
input. Keep the board trace as short as possible to mini-
vides a fixed gain of +6dB, while the MAX9502M output
mize parasitic stray capacitance and prevent uninten-
buffer provides a fixed gain of +12dB.
tional high-frequency attenuation.
Filter
Output Considerations
The MAX9502 contains a 4th-order Chebyshev recon-
The MAX9502 output must be DC-coupled. No AC-cou-
struction filter. The Chebyshev-type response features
pling capacitors are allowed. The MAX9502 connects
a 0.4dB flat passband for NTSC and PAL signals. The
directly to the video cable through a 75Ω series back-
stopband offers 55dB (typ) of attenuation at 27MHz
termination resistor. The other end of the cable should
and above (see the Typical Operating Characteristics).
be properly terminated with a 75Ω resistor as well.
Because of this configuration, the peak-to-peak ampli-
tude 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.
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
Power-Supply Bypassing and Layout
Considerations
The MAX9502 operates from a single-supply voltage
down to 2.5V, allowing for low-power consumption.
drive a 2.4V
signal into a 150Ω video load to ground.
P-P
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 connect-
ed to ground.
Bypass V
to GND with a 0.1µF capacitor. Place all
CC
external components as close to the device as possible.
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 applica-
tions where the amplifier output can be directly shorted.
Typical Operating Circuit
V
CC
0.1µF
Short-circuit protection activates if the output is short-cir-
cuited 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.
GAIN = +6dB
MAX9502G
MAX9502
ON
SHDN
IN
SHUTDOWN
CIRCUIT
GAIN = +12dB
MAX9502M
OFF
VIDEO
ASIC
75Ω
OUT
VIDEO
DAC
LOWPASS
FILTER
VIDEO AMP
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 volt-
age 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
GND
Chip Information
PROCESS: BICMOS
8
_______________________________________________________________________________________
2.5V Video Amplifier with Reconstruction Filter
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.)
3
e
b
A
5
4
6
TOPMARK
2
PIN 1
0.075x45°
L2
L
PIN 1
INDEX AREA
E
AAA
3
2
1
1
A
A
A1
SIDE VIEW
L1
D
TOP VIEW
BOTTOM VIEW
b
COMMON DIMENSIONS
MIN.
0.64
--
1.45
0.95
0.30
--
NOM.
0.72
0.20
1.50
1.00
0.35
--
MAX.
0.80
--
1.55
1.05
0.40
0.08
0.05
0.23
A
A1
D
SECTION A-A
E
L
L1
L2
b
--
0.17
--
0.20
0.50 BSC.
e
TITLE:
PACKAGE OUTLINE, 6L uDFN, 1.5x1.0x0.8mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
-DRAWING NOT TO SCALE-
21-0147
C
1
_______________________________________________________________________________________
9
2.5V Video Amplifier with Reconstruction Filter
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.)
PACKAGE OUTLINE, 5L SC70
1
21-0076
C
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.
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MAXIM
MAX9502MELT+T
1 CHANNEL, VIDEO AMPLIFIER, BCC6, 1 X 1.50 MM, 0.80 MM HEIGHT, LEAD FREE, MICRO, MO-252WAAD, DFN-6
ROCHESTER
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