MAXIM MAX9503 Technical data

General Description

The MAX9503 filters and amplifies standard-definition video signals. Maxim’s DirectDrive™ technology eliminates large output-coupling capacitors and sets the video black level to ground. The input of the MAX9503 can be directly connected to the output of a video digital-to-analog converter (DAC). The MAX9503 provides a compact, integrated, and low-power solution.

An internal reconstruction filter smoothes the steps and reduces the spikes on the video signal from the DAC. The reconstruction filter typically has 3dB attenuation at 9MHz and 50dB attenuation at 27MHz, and ±1dB passband flatness to 5.5MHz.

Maxim’s DirectDrive uses an integrated charge pump and a linear regulator to create a clean negative power supply to drive the sync below ground. The charge pump injects so little noise into the video output that the picture is visibly flawless.

The MAX9503 is available with +6dB (MAX9503G) and +12dB (MAX9503M) gains. The device operates from a

2.7V to 3.6V single supply and features a 10nA lowpower shutdown mode.

The MAX9503 is offered in space-saving 16-pin QSOP and 16-pin TQFN packages and is specified over the

-40°C to +85°C extended temperature range.

Applications

Digital Still Cameras

Mobile Phones/Smartphones

Security Cameras

Portable Media Players

Space-Constrained, Low-Power Portable Devices

Features

♦ DC-Coupled Output

♦ Direct Connection to Video DAC

♦ Video Output Black Level Set to Ground

♦ Video Reconstruction Filter with 50dB

Attenuation at 27MHz

♦ Preset Gain

6dB (MAX9503G) 12dB (MAX9503M)

♦ 10nA Shutdown Supply Current

♦ 2.7V to 3.6V Single-Supply Operation

MAX9503

DirectDrive Video Amplifier with

Reconstruction Filter

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

0 TO 50mV

-0.1V TO +0.1V

MAX9503

AMP

LINEAR

REGULATOR

CHARGE

PUMP

BUFFER

VIDOUT

VIDIN

MAX9503G: 6dB MAX9503M: 12dB

LOWPASS

FILTER

19-3676; Rev 1; 8/05

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.

EVALUATION KIT

AVAILABLE

PART*

PINPACKAGE

PKG CODE

TOP MARK

MAX9503GEEE

16 QSOP E16-4 —

MAX9503GETE

16 TQFN T1633-4 ACU

MAX9503MEEE

16 QSOP E16-4 —

MAX9503METE

16 TQFN T1633-4 ACV

Functional Diagram/Typical Operating Circuit and Pin Configurations appear at end of data sheet.

*All devices are specified over the -40°C to +85°C operating

temperature range.

Block Diagram

MAX9503

DirectDrive Video Amplifier with Reconstruction Filter

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD= CPVDD= SHDN = 3.0V, SGND = GND = CPGND = 0V, C1 = C2 = C3 = C4 = 1µF, R

BIAS

= 100kΩ, TA= T

MIN

to T

MAX

= 150Ω to SGND, unless otherwise noted. V

VIDIN

= 286mV (MAX9503G), V

VIDIN

= 143mV (MAX9503M). Typical values are at

= CPV

= SHDN = 3.0V, TA= +25°C, unless otherwise noted.) (Note 1)

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.

VDDto SGND............................................................-0.3V to +4V

VIDIN to SGND .........................................................-0.3V to +4V

BIAS to SGND ............................................-0.3V to (V

+ 0.3V)

SHDN to SGND ........................................................-0.3V to +4V

VIDOUT to SGND........................(The greater of V

and -2V) to

+ 0.3V)

CPV

to CPGND ....................................................-0.3V to +4V

C1P, C1N, CPV

.............................Capacitor Connection Only

CPGND, SGND, GND............................................-0.1V to +0.1V

CPV

to V

SS ..................................................................

-0.1V to +0.1V

VIDOUT Short Circuit to V

, SGND

and the Greater of (V

and -2V) ...........................Continuous

Continuous Current

VIDIN, BIAS, SHDN ......................................................±20mA

Continuous Power Dissipation (T

= +70°C)

16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW

16-Pin TQFN (derate 15.6mW/°C above +70°C) .......1349mW

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

PARAMETER

CONDITIONS

Supply Voltage Range

CPV

Guaranteed by DC voltage gain and quiescent current

2.7 3.6 V

Quiescent Supply Current I

VDD = 3.6V (IDD = I

VDD

+ I

CPVDD

, RL = ∞) 1215mA

Shutdown Supply Current I

SHDN

VDD = 3.6V (I

SHDN

= I

VDD

+ I

CPVDD

SHDN = SGND

1µA

Bias Voltage V

BIAS

VIDEO AMPLIFIER

MAX9503G

Guaranteed by DC

MAX9503M

MAX9503G

Input Voltage Range

Guaranteed by DC voltage gain, V

= 3V

MAX9503M

Input Current I

VDD = 2.7V

µA

Input Resistance R

1MΩ

MAX9503G 5.5 6 6.5

DC Voltage Gain (Note 2) A

VDD = 2.7V to 3.6V

MAX9503M

MAX9503G

Output Black Level (Note 3) VDD = 2.7V

MAX9503M

Output Voltage Swing

P-P

Output Short-Circuit Current I

Sinking or sourcing 50 mA

MAX9503G

Output Resistance R

OUT

MAX9503M

MAX9503G 4.2

Shutdown Output Impedance

SHDN = SGND

MAX9503M 8.2

kΩ

SYMBOL

MIN TYP MAX UNITS

RANGE

OUTSHDN

voltage gain, V

= 2.7V

-0.10 +1.05

-0.050 +0.525

-0.10 +1.28

-0.05 +0.64

-2.5 +2.5

Guaranteed by DC voltage gain, VDD = 2.7V 2.162

11.5

-0.1

-0.15

Guaranteed by DC voltage gain, VDD = 3V 2.594

0.01

12.5

+0.1

+0.15

0.01

0.02

MAX9503

DirectDrive Video Amplifier with

Reconstruction Filter

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VDD= CPVDD= SHDN = 3.0V, SGND = GND = CPGND = 0V, C1 = C2 = C3 = C4 = 1µF, R

BIAS

= 100kΩ, TA= T

MIN

to T

MAX

= 150Ω to SGND, unless otherwise noted. V

VIDIN

= 286mV (MAX9503G), V

VIDIN

= 143mV (MAX9503M). Typical values are at

= CPV

= SHDN = 3.0V, TA= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

CHARGE PUMP

Switching Frequency

300 kHz

LOGIC SIGNALS

Logic-Low Threshold V

VDD = 2.7V to 3.6V 0.5 V

Logic-High Threshold V

VDD = 2.7V to 3.6V 1.5 V

Logic Input Current I

1µA

AC ELECTRICAL CHARACTERISTICS

= CPV

= SHDN = 3.0V, SGND = GND = CPGND = 0V, C1 = C2 = C3 = C4 = 1µF, R

BIAS

= 100kΩ, TA= T

MIN

to T

MAX

. RL =

150Ω to SGND, unless otherwise noted. V

VIDIN

= 286mV (MAX9503G), V

VIDIN

= 143mV (MAX9503M). Typical values are at VDD=

CPV

= SHDN = 3.0V, TA= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

CONDITIONS

UNITS

Passband Flatness VDD = 2.7V, f = 100kHz to 5.5MHz -1 0 +1 dB

f = 9.1MHz 3

Attenuation

= 2.7V,

VIDOUT= 2V

P-P

, attenuation

is referred to 100kHz

f = 27MHz 35 50

MAX9503G 62

Power-Supply Rejection Ratio PSRR f = 100kHz

MAX9503M 56

MAX9503G 0.5

Output Impedance Z

OUT

f = 5MHz

MAX9503M

MAX9503G 0.1

Differential Gain Error DG NTSC, VIDOUT = 2V

P-P

MAX9503M 0.1

MAX9503G 0.2

Differential Phase Error DP NTSC, VIDOUT = 2V

P-P

MAX9503M 0.2

D egr ees

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

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

0.7 K%

Nonlinearity 5-step staircase 0.2 %

Group-Delay Distortion D

100kHz to 5.5MHz 10 ns

VIDOUT Capacitive-Load Stability

OUT

= 2V

P-P

, no sustained oscillations 20 pF

SYMBOL

150 250

MIN TYP MAX

0.65

-0.3

MAX9503

DirectDrive Video Amplifier with Reconstruction Filter

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS (continued)

= CPV

= SHDN = 3.0V, SGND = GND = CPGND = 0V, C1 = C2 = C3 = C4 = 1µF, R

BIAS

= 100kΩ, TA= T

MIN

to T

MAX

. RL =

150Ω to SGND, unless otherwise noted. V

VIDIN

= 286mV (MAX9503G), V

VIDIN

= 143mV (MAX9503M). Typical values are at VDD=

CPV

= SHDN = 3.0V, TA= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

CONDITIONS

UNITS

MAX9503G 64

Peak Signal-to-RMS Noise SNR 100kHz to 5.5MHz

MAX9503M 58

Enable Time t

VIDIN = 0.5V, VIDOUT settled to within 1% of the final voltage

0.2 ms

Disable Time t

OFF

VIDIN = 0.5V, VIDOUT settled to below 1% of the output voltage

0.1 ms

Note 1: All devices are 100% production tested at TA= +25°C. Specifications over temperature are guaranteed by design. Note 2: Voltage gain (A

) is a two-point measurement in which the output voltage swing is divided by the input voltage swing.

Note 3: With an output load attached, this offset will directly contribute to quiescent current.

MAX9503G

SMALL-SIGNAL GAIN vs. FREQUENCY

MAX9503 toc01

FREQUENCY (MHz)

GAIN (dB)

101

-70

-60

-50

-40

-30

-20

-10

-80

0.1 100

VIDOUT

= 100mV

P-P

GAIN = 6dB

MAX9503M

SMALL-SIGNAL GAIN vs. FREQUENCY

MAX9503 toc02

FREQUENCY (MHz)

GAIN (dB)

101

-70

-60

-50

-40

-30

-20

-10

-80

0.1 100

VIDOUT

= 100mV

P-P

GAIN = 12dB

MAX9503G SMALL-SIGNAL

GAIN FLATNESS vs. FREQUENCY

MAX9503 toc03

FREQUENCY (MHz)

GAIN FLATNESS (dB)

0.1 10

VIDOUT

= 100mV

P-P

GAIN = 6dB

Typical Operating Characteristics

(VDD= CPV

= SHDN = 3.0V, SGND = GND = CPGND = 0V, no load, C1 = C2 = C3 = C4 = 1µF, R

BIAS

= 100kΩ, TA= T

MIN

MAX

. R

= 150Ω to SGND, unless otherwise noted. V

VIDIN

= 286mV (MAX9503G), V

VIDIN

= 143mV (MAX9503M). Typical values

are at T

= +25°C, unless otherwise noted.)

SYMBOL

MIN TYP MAX

+ 9 hidden pages