Rainbow Electronics MAX9597 User Manual

General Description

The MAX9597 single SCART interface routes audio and
video signals between a set-top box decoder chip and
an external SCART connector under I

2

C control.
Operating from a 3.3V supply and a 12V supply, the
MAX9597 consumes 53mW during quiescent operation
and 254mW during average operation when driving
typical signals into typical loads.

The MAX9597 audio section contains left and right audio
paths with an independent operational amplifier at the
inputs. The DirectDrive®output amplifiers create a
2V

RMS

full-scale audio signal biased around ground,
eliminating the need for bulky output capacitors and
reducing click-and-pop noise. The zero-cross detection
circuitry also further reduces clicks and pops by
enabling audio sources to switch only during a zero­crossing.

The MAX9597 video section contains 4 channels of
video filter amplifiers. The standard-definition video sig­nals from the set-top box decoder chip are lowpass fil­tered to remove out-of-bandwidth artifacts. The
MAX9597 also supports slow-switching and fast-switch­ing signals.

The MAX9597 is available in a compact 28-pin thin
QFN package and is specified over the 0°C to +70°C
commercial temperature range.

Features

♦ 53mW Quiescent Power Consumption

♦ 5µW Shutdown Consumption

♦ Audio Operational Amplifiers to Create Input

Filters

♦ Clickless/Popless, DirectDrive Audio

♦ Video Reconstruction Filter with 10MHz Passband

and 43dB Attenuation at 27MHz

♦ 3.3V and 12V Supply Voltages

MAX9597

Low-Power Audio/Video Interface

for Single SCART Connectors

________________________________________________________________

Maxim Integrated Products

1

19-4159; Rev 1; 10/08

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.

EVALUATION KIT

AVAILABLE

Ordering Information

+

Denotes a lead-free/RoHS-compliant package.

*

EP = Exposed pad.

PART TEMP RANGE PIN-PACKAGE

MAX9597CTI+ 0°C to +70°C 28 TQFN-EP*

I2C INTERFACE

AND REGISTERS

MAX9597

VIDEO FILTERS

AUDIO

WITH DirectDrive

OUTPUTS

SLOW SWITCHING

FAST SWITCHING

CHARGE PUMP

V

12

V

AUD

V

ID

12V 3.3V3.3V

EP

GND

μC

VIDEO

ENCODER

STEREO

AUDIO

DAC

RGB, Y/C, CVBS

SINGLE OR

DIFFERENTIAL

STEREO AUDIO

STB CHIP

I

2

C

RGB, Y/C, CVBS

L/R AUDIO

FAST AND SLOW SWITCHING

TV

SCART

System Block Diagram

Applications

Set-Top Boxes

AV Receivers

TVs

DVD Players

DirectDrive is a registered trademark of Maxim Integrated
Products, Inc.

MAX9597

Low-Power Audio/Video Interface
for Single SCART Connectors

2 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, no load, TA= 0°C to +70°C, unless otherwise noted. Typical values are at

T

A

= +25°C.) (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.

ABSOLUTE MAXIMUM RATINGS

(All voltages referenced to GND, unless otherwise noted.)
V

VID

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

V

12

to EP ................................................................-0.3V to +14V

V

AUD

to EP ...............................................................-0.3V to +4V

EP to GND .............................................................-0.1V to +0.1V

All Video Inputs .......................................................-0.3V to +4V

All Audio Inputs to EP .............................(V

EP

- 1)V to (VEP+ 1)V

SDA, SCL, DEV_ADDR ............................................-0.3V to +4V

TV_SS_OUT .................................................-0.3V to (V

12

+ 0.3V)

Current

All Video/Audio Inputs ..................................................±20mA

C1P, C1N, CPVSS ........................................................±50mA

Output Short-Circuit Current Duration

All Video Outputs, TV_FS_OUT to V

VID

, GND........Continuous

Audio Outputs to V

AUD

, EP ....................................Continuous

TV_SS_OUT to V

12

, EP...........................................Continuous

Continuous Power Dissipation (T

A

= +70°C)

28-Pin Thin QFN

(derate 21.3mW/°C above +70°C)...........................1702mW

Operating Temperature Range ..............................0°C to +70°C

Junction Temperature .....................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Video Supply Voltage Range V

Audio Supply Voltage Range V

Slow-Switching Supply Voltage
Range

V

Quiescent Supply Current I

VID

V

AUD

V12 Quiescent Supply Current I

VIDEO CHARACTERISTICS

DC-COUPLED INPUT

Input Voltage Range V

Input Current I

Input Resistance R

AC-COUPLED INPUT

Sync-Tip Clamp Level V

Sync Crush

Input Clamping Current Sync-tip clamp 2 3 μA

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Inferred from video PSRR test at 3.0V and

3.6V

Inferred from audio PSRR tests at 3.0V and

3.6V

Inferred from slow-switching levels 11.4 12 12.6 V

12

Normal operation, all video output
amplifiers are enabled

Shutdown 1 10 μA

Normal operation 3 4.1 mA

Shutdown 0.01 10 μA

Normal operation 1.5 100

Shutdown 0.1 10

RL = 75Ω to GND or
150Ω to V

IN

inferred from gain test

VIN = GND 2 3 μA

IN

Sync-tip clamp -5 0 6.1 mV

Sync-tip clamp; percentage reduction in
sync pulse (0.3V
clamping current measurement

VID

Quiescent Supply Current I

VID

AUD

V

VID_Q

AUD_Q

12_Q

IN

CLP

3.0 3.3 3.6 V

3.0 3.3 3.6 V

13 20 mA

V

= 3V 1.15

VID

V

/2,

); guaranteed by input

P-P

= 3.135V 1.2

VID

V

= 3.3V 1.3

VID

300 kΩ

2%

μA

V

P-P

MAX9597

Low-Power Audio/Video Interface

for Single SCART Connectors

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, no load, TA= 0°C to +70°C, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Note 1)

Max Input Source Resistance 300 Ω

Bias Voltage V
Input Resistance Bias circuit 10 kΩ

DC CHARACTERISTICS

DC Voltage Gain A

DC Gain Mismatch Guaranteed by DC voltage gain -2 +2 %

Output Level

Output Voltage Swing

Output Short-Circuit Current 100 mA

Output Leakage Current Output disabled 0.02 10 μA
Power-Supply Rejection Ratio 3.0V ≤ V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

BIAS

Bias circuit 0.57 0.6 0.63 V

V

= 3V,

VID

V

RL = 75Ω
to GND
or
R

= 150Ω

L

/2

to V

VID

V

IN

(V

CLP

V

VID

V

IN

(V

CLP

V

VID

V

IN

to (V

V

VID

V

IN

to (V

= V

CLP

+ 1.15V)

= 3.135V,

= V

CLP

+ 1.2V)

= 3V,

= (V

BIAS

+ 0.575V)

BIAS

= 3.135V

= (V

BIAS

+ 0.6V)

BIAS

to

to

- 0.575V)

- 0.6V)

1.93 2 2.05

1.93 2 2.05

2

2

Sync-tip clamp 0.2 0.30 0.4

Bias circuit 1.38 1.5 1.62

Sync-tip clamp, measured at

= 3V, VIN = V

VID

+ 1.15V), RL = 75Ω

CLP

= 150Ω to

L

/2

= V

IN

CLP

/2

VID

= 3V, VIN =

VID

- 0.575V) to (V

= 75Ω to GND or

L

/2

VID

= (V

IN

BIAS

+ 0.6V), RL = 75Ω

BIAS

= 150Ω to

L

/2

VID

to (V

BIAS

VID

- 0.6V)

=

CLP

+

=

CLP

2.3

2.316 2.4 2.46

2.3

2.316 2.4 2.46

Guaranteed
by DC
voltage gain

VID

output, V
to (V
to GND or R
V

VID

Measured at output, V

3.135V, V
+ 1.2V), RL = 75Ω to GND or

= 150Ω to V

R

L

Bias circuit, measured at
output, V
(V

BIAS

0.575V), R
R

= 150Ω to V

L

Measured at output, V

3.135V, V
to (V
to GND or R
V

VID

≤ 3.6V 50 75 dB

V/V

V

V

P-P

MAX9597

Low-Power Audio/Video Interface
for Single SCART Connectors

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, no load, TA= 0°C to +70°C, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Note 1)

AC CHARACTERISTICS

Filter Passband Flatness V

Filter Attenuation

Differential Gain DG 5-step modulated staircase, f = 4.43MHz 0.2 %

Differential Phase DP 5-step modulated staircase, f = 4.43MHz 0.3 Degrees

2T Pulse-to-Bar K Rating

2T Pulse Response 2T = 200ns 0.5 K%

2T Bar Response

Nonlinearity 5-step staircase 0.5 %
Group Delay Distortion 100kHz ≤ f ≤ 5MHz, outputs are 2V
Peak Signal to RMS Noise 100kHz ≤ f ≤ 5MHz 60 dB

Power-Supply Rejection Ratio f = 100kHz, 100mV
Output Impedance f = 5MHz 5.5 Ω

Video Crosstalk f = 4.43MHz -68.5 dB

AUDIO CHARACTERISTICS OUTPUT AMPLIFIER (Note 2)

Voltage Gain 3.95 4 4.05 V/V

Gain Mismatch -1.5 +1.5 %

Flatness f = 20Hz to 20kHz, 0.25V

Frequency Bandwidth

Capacitive Drive

Input Signal Amplitude f = 1kHz, THD < 1% 0.5 V

Output DC Level No input signal, VIN = 0V -3 +3 mV

Power-Supply Rejection Ratio

Signal-to-Noise Ratio f = 1kHz, 0.25V

Total Harmonic Distortion Plus
Noise

Output Impedance f = 1kHz 0.28 Ω

Mute Suppression f = 1kHz, 0.25V

Audio Crosstalk f = 1kHz, 0.25V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

= 2V

OUT

V

= 2V

OUT

attenuation is
referred to 100kHz

2T = 200ns; bar time is 18μs; the beginning

2.5% and the ending 2.5% of the bar time is
ignored

2T = 200ns; bar time is 18μs; the beginning

2.5% and the ending 2.5% of the bar time is
ignored

0.25V

-3dB referenced to 1kHz

No sustained oscillations, 75Ω
resistor on output

DC 75 110

f = 1kHz 91

RL = 3.33kΩ,
f = 1kHz

, f = 100kHz to 10MHz 1 dB

P-P

f = 11MHz 3

,

P-P

input, frequency where output is

RMS

f = 27MHz 43

f = 54MHz 63

0.5 K%

0.5 K%

P-P

P-P

input 0.01 dB

RMS

series

input, 20Hz to 20kHz 97 dB

RMS

0.25V

0.5V

input 101 dB

RMS

input 100 dB

RMS

input 0.0011

RMS

input 0.0021

RMS

3.5 ns

47 dB

205 kHz

300 pF

dB

RMS

dB

%

MAX9597

Low-Power Audio/Video Interface

for Single SCART Connectors

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, no load, TA= 0°C to +70°C, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Note 1)

VIDEO TO AUDIO INTERACTION

Crosstalk

INPUT AMPLIFIER OPEN-LOOP CHARACTERISTICS

Input Offset Voltage V

Input Bias Current I

Input Offset Current I

Common-Mode Input Voltage
Range

Common-Mode Rejection Ratio CMRR 80 100 dB

Power-Supply Rejection Ratio PSRR VCM = 0V 90 125 dB

Large-Signal Voltage Gain A

Output Voltage Swing V

Gain-Bandwidth Product GBWP 8.25 MHz

Slew Rate SR 1.24 V/μs

Input Voltage-Noise Density V

Input Current-Noise Density I

Capacitive Load Stability A

CHARGE PUMP

Switching Frequency 580 kHz

FAST SWITCHING

Output Low Voltage I

Output High Voltage I

Output Resistance 5.5 Ω

Rise Time RL = 143Ω to GND 2 ns

Fall Time RL = 143Ω to GND 2 ns

SLOW SWITCHING

Output Low Voltage 10kΩ to EP, 11.4V ≤ V12 ≤ 12.6V 1.5 V
Output Medium Voltage 10kΩ to EP, 11.4V ≤ V12 ≤ 12.6V 5 6.5 V
Output High Voltage 10kΩ to EP, 11.4V ≤ V12 ≤ 12.6V 10 V

Input Current -1 +1 μA

DIGITAL INTERFACE (SDA, SCL)

Input High Voltage V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

V

OUT

OS

B

OS

CM

VOL

N

N

IH

Video input: f = 15kHz, 1V

Audio input: f = 15kHz, 0.1V

VCM = 0V

VCM = 0V 100 550 nA

VCM = 0V 1.5 30 nA

Inferred from CMRR test -0.707 +0.707 V

VCM = 0V, -0.8V ≤ V

RL = 124Ω, inferred from A

f = 1kHz 13.5 nV/√Hz
f = 1kHz 0.2 pA/√Hz

= 1V/V, no sustained oscillation 20 pF

VCL

= 0.5mA 0.003 0.1 V

OL

= 0.5mA

OH

TA = +25°C 25 100

T

= 0°C to +70°C 225

A

OUT

signal 100

P-P

signal 102

RMS

≤ +0.8V 60 80 dB

test 1.6 V

VOL

V

-

V

VID

0.1

0.7 x
V

VID

VID

0.003

-

dB

μV

P-P

V

V

MAX9597

Low-Power Audio/Video Interface
for Single SCART Connectors

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, no load, TA= 0°C to +70°C, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Note 1)

Note 1: All devices are 100% production tested at TA= +25°C and are guaranteed by design for TA= 0°C to +70°C as specified.
Note 2: Input operational amplifier configured in voltage follower configuration, unless otherwise noted.

Input Low Voltage V

Input Hysteresis V

Input Leakage Current IIH, I

Input Capacitance 10 pF

Input Current

Output Low Voltage SDA V

Serial-Clock Frequency f

Bus Free Time Between a STOP
and a START Condition

Hold Time, (REPEATED) START
Condition

Low Period of the SCL Clock t

High Period of the SCL Clock t

Setup Time for a REPEATED
START Condition

Data Hold Time t

Data Setup Time t

Fall Time of SDA Transmitting t

Setup Time for STOP Condition t

Pulse Width of Spike Suppressed t

OTHER DIGITAL I/O

DEV_ADDR Low Level

DEV_ADDR High Level

DEV_ADDR Input Current -1 +1 μA

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

IL

HYS

SCL and SDA have 40kΩ pullup resistors to

IL

V

VID

V

0.1V

0.1V

VIDMAX

VID

VID

= 3.6V

< SDA < 0.9V

< SCL < 0.9V

VIDMAX

VIDMAX

I/O pins of fast-mode devices must not
obstruct the SDA and SCL lines if V

VID

is

0.05 x
V

VID

-1 +1 μA

-10 +10 μA

switched off

I

OL

SCL

t

BUF

t

HD, STA

LOW

HIGH

t

SU, STA

= 6mA 0.4 V

SINK

0 400 kHz

1.3 μs

0.6 μs

1.3 μs

0.6 μs

0.6 μs

A master device must provide a hold time of

HD, DAT

at least 300ns for the SDA signal (referred
to V

of the SCL signal) to bridge the

IL

0 0.9 μs

undefined region of SCL’s falling edge

HD, DAT

100 ns

CB = total capacitance of one bus line in pF

F

SU, STO

SP

< 400pF; t

0.3V

and tF measured between

R

and 0.7V

VID

(CB is in pF)

VID

Input filters on the SDA and SCL inputs
suppress noise spikes less than 50ns

0.6 μs

050ns

250 ns

0.7 x
V

VID

0.3 x
V

VID

0.3 x

V

VID

V

V

V

V

MAX9597

Low-Power Audio/Video Interface

for Single SCART Connectors

_______________________________________________________________________________________

7

Typical Operating Characteristics

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, video load is 150Ω to GND, audio load is 10kΩ to GND, TA= +25°C, unless other-

wise noted.)

VIDEO SMALL-SIGNAL GAIN

vs. FREQUENCY

10

5
0

-5

-10

-15

-20

GAIN (dB)

-25

-30

-35

-40

-45

-50
100k 100M

FREQUENCY (Hz)

VIDEO LARGE-SIGNAL GAIN FLATNESS

vs. FREQUENCY

2

1

0

-1

-2

-3

GAIN (dB)

-4

-5

-6

-7

-8

FREQUENCY (Hz)

V

= 100mV

OUT

10M1M

10M1M100k 100M

P-P

V

= 2V

OUT

P-P

MAX9597 toc01

MAX9597 toc04

VIDEO SMALL-SIGNAL GAIN FLATNESS

2

1

0

-1

-2

-3

GAIN (dB)

-4

-5

-6

-7

-8

VIDEO CROSSTALK vs. FREQUENCY

0

-10

-20

-30

-40

-50

CROSSTALK (dB)

-60

-70

-80

vs. FREQUENCY

FREQUENCY (Hz)

FREQUENCY (Hz)

V

= 100mV

OUT

10M1M100k 100M

10M1M100k 100M

P-P

V

= 2V

OUT

P-P

MAX9597 toc02

GAIN (dB)

MAX9597 toc05

GROUP DELAY (ns)

VIDEO LARGE-SIGNAL GAIN

vs. FREQUENCY

10

5
0

-5

-10

-15

-20

-25

-30

-35

-40

-45

-50

FREQUENCY (Hz)

VIDEO GROUP DELAY DISTORTION

vs. FREQUENCY

100

90

80

70

60

50

40

30

20

10

0

FREQUENCY (Hz)

V

= 2V

OUT

P-P

10M1M100k 100M

V

= 2V

OUT

P-P

10M1M100k 100M

MAX9597 toc03

MAX9597 toc06

VIDEO POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

0

-5

-10

-15

-20

-25

PSRR (dB)

-30

-35

-40

-45

-50

FREQUENCY (Hz)

10M1M100k 100M

MAX9597 toc07

VOLTAGE GAIN (V/V)

VOLTAGE GAIN

vs. TEMPERATURE

2.03

2.02

2.01

2.00

1.99

1.98

1.97
0 255075

TEMPERATURE (°C)

MAX9597 toc08

OUTPUT VOLTAGE (V)

-0.5

VIDEO OUTPUT VOLTAGE

vs. INPUT VOLTAGE

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

-0.2 1.6
INPUT VOLTAGE (V)

MAX9597 toc09

1.41.20 0.2 0.4 0.80.6 1.0

MAX9597

Low-Power Audio/Video Interface
for Single SCART Connectors

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, video load is 150Ω to GND, audio load is 10kΩ to GND, TA= +25°C, unless other-

wise noted.)

DIFFERENTIAL GAIN AND PHASE

MAX9597 toc10

DIFFERENTIAL PHASE (deg)

103245

0.6

0.8

0.4

0.2
0

-0.2

-0.4

DIFFERENTIAL GAIN (%)

0.2

0.3

0.1
0

-0.1

-0.2

-0.3
103245

100ns/div

2T RESPONSE

INPUT
200mV/div

MAX9597 toc11

OUTPUT
400mV/div

400ns/div

12.5T RESPONSE

INPUT
200mV/div

MAX9597 toc12

OUTPUT
400mV/div

10

μs/div

PAL VIDEO TEST SIGNAL

INPUT

0.5V/div

MAX9597 toc13

OUTPUT
1V/div

1.460

1.464

1.472

1.468

1.476

1.480

VIDEO OUTPUT BIAS VOLTAGE

vs. TEMPERATURE

MAX9597 toc14

TEMPERATURE (°C)

VIDEO OUTPUT BIAS VOLTAGE (V)

0255075

AUDIO LARGE-SIGNAL BANDWIDTH

vs. FREQUENCY

MAX9597 toc15

FREQUENCY (Hz)

GAIN (dB)

100k10k1k100

-15

-10

-5

0

5

10

-20
10 1M

VIN = 0.25V

RMS

RL = 10kΩ

AUDIO CROSSTALK

vs. FREQUENCY

MAX9597 toc16

FREQUENCY (Hz)

CROSSTALK (dB)

10k1k

-100

-80

-60

-40

-20

0

-120
100 100k

VIN = 0.25V

RMS

RL = 10kΩ

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

MAX9597 toc17

FREQUENCY (Hz)

THD+N (%)

10k1k100

0.001

0.01

0.1

0.0001
10 100k

RL = 3.3kΩ

VIN = 0.25V

RMS

VIN = 0.5V

RMS

V

AUD

POWER-SUPPLY REJECTION RATIO

(INPUT REFERRED) vs. FREQUENCY

MAX9597 toc18

FREQUENCY (Hz)

PSRR (dB)

10k1k100

-100

-80

-60

-40

-20

0

-120
10 100k

V

AUD

= 3.3V + 100mV

P-P

MAX9597

Low-Power Audio/Video Interface

for Single SCART Connectors

_______________________________________________________________________________________

9

Typical Operating Characteristics (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, video load is 150Ω to GND, audio load is 10kΩ to GND, TA= +25°C, unless other-

wise noted.)

INPUT-AMPLIFIER TOTAL HARMONIC

DISTORTION PLUS NOISE vs. FREQUENCY

MAX9597 toc25

FREQUENCY (Hz)

THD+N (%)

100 10k1k

0.001

0.01

0.1

0.0001
10 100k

VIN = 0.25V

RMS

VIN = 0.5V

RMS

UNITY GAIN
R

L

= OPEN

2.9

3.1

3.0

3.3

3.2

3.5

3.4

3.6

0255075

V

AUD

QUIESCENT SUPPLY CURRENT

vs. TEMPERATURE

MAX9597 toc20

TEMPERATURE (°C)

QUIESCENT SUPPLY CURRENT (mA)

V

QUIESCENT SUPPLY CURRENT

VID

14.3

14.2

14.1

14.0

13.9

QUIESCENT SUPPLY CURRENT (mA)

13.8
0255075

vs. TEMPERATURE

TEMPERATURE (°C)

INPUT-AMPLIFIER INPUT OFFSET

VOLTAGE vs. TEMPERATURE

20

15

10

5

V12 QUIESCENT SUPPLY CURRENT

vs. TEMPERATURE

0.20

MAX9597 toc19

INPUT-AMPLIFIER INPUT BIAS CURRENT

0.3

MAX9597 toc22

0.2

0.15

0.10

0.05

QUIESCENT SUPPLY CURRENT (μA)

0

0255075

TEMPERATURE (°C)

vs. TEMPERATURE

MAX9597 toc23

MAX9597 toc21

0

-5

INPUT OFFSET VOLTAGE (mV)

-10

-15
0255075

TEMPERATURE (°C)

0.1

INPUT BIAS CURRENT (μA)

0

-50 25 50 75

TEMPERATURE (°C)

INPUT-AMPLIFIER GAIN AND PHASE

60

40

GAIN

20

0

GAIN (dB)

PHASE

-20
AV = +100V/V
V

-40
R

C

-60

1k 100M

PHASE MARGIN (CL = 0pF) = 60°
PHASE MARGIN (C

= 10mV

IN

P-P

= OPEN

LOAD

= 0pF/22pF

L

FREQUENCY (Hz)

CL = OpF

CL = 22pF

vs. FREQUENCY

= 22pF) = 44°

L

10M1M100k10k

180

120

MAX9597 toc24

60

0

PHASE (deg)

-60

-120

-180

MAX9597

Low-Power Audio/Video Interface
for Single SCART Connectors

10 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

VID

= V

AUD

= 3.3V, V12= 12V, GND = EP = 0, video load is 150Ω to GND, audio load is 10kΩ to GND, TA= +25°C, unless other-

wise noted.)

0V

OUTPUT
50mV/div

0V

INPUT-AMPLIFIER SMALL-SIGNAL

TRANSIENT RESPONSE

MAX9597 toc26

200ns/div

UNITY GAIN
R

L

= OPEN

INPUT
50mV/div

0V

OUTPUT
50mV/div

0V

INPUT-AMPLIFIER SMALL-SIGNAL

TRANSIENT RESPONSE

MAX9597 toc27

200ns/div

UNITY GAIN
R

L

= 124Ω

INPUT
50mV/div

0V

OUTPUT
500mV/div

0V

INPUT-AMPLIFIER LARGE-SIGNAL

TRANSIENT RESPONSE

MAX9597 toc28

1μs/div

UNITY GAIN
R

L

= OPEN

INPUT
500mV/div

0V

OUTPUT
500mV/div

0V

INPUT-AMPLIFIER LARGE-SIGNAL

TRANSIENT RESPONSE

MAX9597 toc29

1μs/div

UNITY GAIN
R

L

= 124Ω

INPUT
500mV/div