OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX4397DCTM+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
General Description
The MAX4397DA/SA dual SCART switch matrices route
audio and video signals between an MPEG encoder
and two external SCART connectors under I
2
C control,
and meets the requirements of EN50049-1, IEC 933-1,
Canal+, and BSkyB standards.
The video and audio channels feature input source selec-
tion multiplexers, input buffers, and output buffers for rout-
ing all inputs to selected outputs. The MAX4397DA audio
encoder input is differential DC-coupled, while the
MAX4397SA audio encoder input is single-ended AC-cou-
pled. Except for the MAX4397DA’s audio encoder input,
all other inputs and outputs are AC-coupled with internal
DC-biasing set to predefined levels.
The MAX4397DA/SA provide programmable gain control
from +5dB to +7dB in 1dB steps for Red, Green, and
Blue component video signals. All other video outputs
have a fixed +6dB gain. Additional features include an
internal Luma and Chroma (Y/C) mixer that generates a
Composite video signal (CVBS) to supply an RF
modulator output and internal video reconstruction low-
pass filters with passband ripple between -1dB and
+1dB from 100kHz to 5.5MHz. The MAX4397DA/SA TV
audio channel feature clickless switching and program-
mable volume control from -56dB to +6dB in 2dB steps.
The VCR audio output also has programmable gain for
-6dB, 0dB, or +6dB. The device also generates
monaural audio from left and right stereo inputs.
All audio drivers deliver a 3.0V
RMS
minimum output.
The MAX4397DA/SA operate with standard 5V and 12V
power supplies and support slow-switching and fast-
switching signals. The I
2
C interface programs the gain
and volume control, and selects the input source
for routing.
The MAX4397DA/SA are available in a compact 48-pin
thin QFN package and are specified over the 0°C to
+70°C commercial temperature range.
Applications
Satellite Set-Top Boxes
Cable Set-Top Boxes
TVs
VCRs
DVDs
Features
♦ Video Outputs Drive 2V
P-P
into 150Ω
♦ Audio Outputs Drive 3V
RMS
into 10kΩ
♦ Clickless, Popless Audio Gain Control
and Switching
♦ AC-Coupled Video Inputs with Internal Clamp
and Bias
♦ DC-Coupled Video Outputs
♦ Composite Video Signal Created Internally from
Y/C Inputs
♦ Internal Video Reconstruction Filters Provide
-40dB at 27MHz
♦ Differential (MAX4397DA) or Single-Ended
(MAX4397SA) Audio Encoder Input
♦ Red/Chroma Switch for Bidirectional I/O
♦ I
2
C-Programmable RGB Gain from +5dB to +7dB
♦ I
2
C-Programmable Audio Gain Control from +6dB
to -56dB
♦ Meets EN50049-1, IEC 933-1, Canal+, and BSkyB
Requirements
MAX4397DA/SA
Audio/Video Switch for Dual SCART Connectors
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-0645; Rev 1; 5/07
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.
Pin Configuration and Typical Application Circuits appear at
end of data sheet.
System Block Diagram appears at end of data sheet.
EVALUATION KIT
AVAILABLE
PART
TEMP
RANGE
PIN-PACKAGE
PKG
CODE
MAX4397DACTM
0°C to +70°C
48 Thin QFN-EP*
(7mm x 7mm)
T4877-6
MAX4397SACTM
0°C to +70°C
48 Thin QFN-EP*
(7mm x 7mm)
T4877-6
*EP = Exposed paddle.
MAX4397DA/SA
Audio/Video Switch for Dual SCART Connectors
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
12
= 12V, V
VID
= V
AUD
= 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V
AUD
to GNDAUD,
V
12
to GNDAUD, and V
VID
to GNDVID
,
SET = 100kΩ nominal, R
LOAD
= 150Ω, T
A
= 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.
V
VID
to GNDVID........................................................-0.3V to +6V
V
12
to GNDAUD .....................................................-0.3V to +14V
V
AUD
to GNDAUD ....................................................-0.3V to +6V
GNDAUD to GNDVID ............................................-0.1V to +0.1V
All Video Inputs, ENCIN_FS, VCRIN_FS,
SET to GNDVID......................................-0.3V to (V
VID
+ 0.3V)
All Audio Inputs,
AUDBIAS to GNDAUD .........................-0.3V to (V
AUD
+ 0.3V)
SDA, SCL, DEV_ADDR to GNDVID ..........................-0.3V to +6V
All Audio Outputs, TV_SS,
VCR_SS to GNDAUD...............................-0.3V to (V
12
+ 0.3V)
All Video Outputs, TVOUT_FS to V
VID
, V
AUD
,
GNDAUD, GNDVID ................................................Continuous
All Audio Outputs to V
VID
, V
AUD
, V
12
,
GNDVID, GNDAUD ................................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
48-Pin Thin QFN (derate 27mW/°C above +70°C)......2105.3mW
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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
UNITS
V
VID
Supply Voltage Range V
VID
Inferred from video gain test at 4.75V
and 5.2V
4.75
5.0
5.25
V
V
AUD
Supply Voltage Range V
AUD
Inferred from audio gain test at 4.75V
and 5.2V
4.75
5.0
5.25
V
V
12
Supply Voltage Range V
12
Inferred from slow switching levels
11.4 12.0 12.6
V
V
VID
Quiescent Supply Current I
VID_Q
All video output amplifiers are enabled,
no load
69 100 mA
V
VID
Standby Supply Current I
VID_S
All video output amplifiers are in shutdown,
and TV_FS_OUT driver is in shutdown, no
load
40 60 mA
V
AUD
Quiescent Supply Current
I
AUD_Q
No load 2.4 6 mA
V
12
Quiescent Supply Current I
12_Q
No load 3.6 6 mA
VIDEO CHARACTERISTICS
CVBS and Y/C, 1V
P-P
input
+5.5 +6.0 +6.5
+4.5 +5.0 +5.5
+5.5 +6.0 +6.5
Voltage Gain G_V
R,G,B, 1V
P-P
input, (programmable gain
control)
+6.5 +7.0 +7.5
dB
LP Filter Passband Flatness T
A
= +25°C, f = 5.5MHz, V
IN
= 1V
P-P
-1
-0.52
+1 dB
LP Filter Attenuation at 27MHz T
A
= +25°C, f = 27MHz, V
IN
= 1V
P-P
30 40 dB
Slew Rate SR V
OUT
= 2V
P-P
16 V/µs
Settling Time t
S
V
OUT
= 2V
P-P
, settle to 0.1% (Note 2)
300
ns
Gain Matching AG 1V
P-P
input, between RGB or Y/C
-0.5 +0.5
dB
Differential Gain DG 5-step modulated staircase 0.4 %
Differential Phase DP 5-step modulated staircase 0.2
degrees
Signal-to-RMS Noise
SNR_V
V
IN
= 1V
P-P
65 dB
MAX4397DA/SA
Audio/Video Switch for Dual SCART Connectors
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
12
= 12V, V
VID
= V
AUD
= 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V
AUD
to GNDAUD,
V
12
to GNDAUD, and V
VID
to GNDVID
,
SET = 100kΩ nominal, R
LOAD
= 150Ω, T
A
= 0°C to +70°C, unless otherwise noted. Typical
values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
UNITS
f = 0.1MHz to 4.43MHz 8
Group Delay Variation ∆GD
f = 0.1MHz to 5.5MHz 12
nS
Sync-Tip Clamp Level
V_CLMP
RGB, Composite, and Luma input, no signal,
no load
1.21
V
Chroma Bias
V_BIAS
Chroma input only, no signal, no load 1.9 V
Droop D Set by input current -2 +2 %
Power-Supply Rejection Ratio
PSRR_V
DC, 0.5V
P-P
48 dB
CVBS, Y, or RGB video inputs, V
IN
> V_
CLMP
4MΩ
Input Impedance Z
IN
Chroma video input, V
IN
= V_
BIAS
11 kΩ
Input Clamp Current I
CLMP
V
IN
= 1.75V 2.5 5 8.0 µA
Pulldown Resistance RP
Enable VCR_R/C_OUT and TV_R/C_OUT
pulldown through I
2
C, (see registers 7 and 9
for loading register details)
10 Ω
RGB, Composite, and Luma, no signal,
no load
1.08
Output Pin Bias Voltage V
OUT
Chroma, no signal, no load
2.27
V
Crosstalk XTLK
Between any two active inputs, f = 4.43MHz,
V
IN
= 1V
P-P
-50 dB
Mute Suppression
M_SPR_V f = 4.43MHz, V
IN
= 1V
P-P
, on one input only
-50 dB
AUDIO CHARACTERISTICS (Note 3)
TV or VCR to stereo, gain = 0dB,
V
IN
= 1V
P-P
-0.5
0
+0.5
TV or VCR to mono, gain = 0dB, V
IN
= 1V
P-P
2.5 3 3.5
ENC to stereo, gain = 0dB, V
IN
= 1V
P-P
3.02 3.52 4.02
Voltage Gain (From Application
Input)
G_A
ENC to mono, gain = 0dB, V
IN
= 1V
P-P
6.02 6.52 7.02
dB
Gain Matching Between
Channels
∆G_A Gain = 0dB, V
IN
= 1V
P-P
-0.5
0
+0.5
dB
Flatness ∆A
f = 20Hz to 20kHz, 0.5V
RMS
input,
gain = 0dB
0.01
dB
Frequency Bandwidth BW
0.5V
RMS
input, frequency where output is
-3dB referenced to 1kHz
230
kHz
Input DC Level (Excluding
Encoder Inputs that are High
Impedance)
V
IN
Gain = 0dB
0.2308
x V
12
V
Encoder Input Common-Mode
Voltage Range
V
CM
MAX4397DA only,
input differential signal = 0V
1.2
V
AUD
-
0.7
V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

MAX4397DCTM+

Mfr. #:
Buy MAX4397DCTM+
Manufacturer:
Maxim Integrated
Description:
Video Switch ICs Audio/Video Switch for Dual SCART Con
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet