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MAX9595CTM+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
General Description
The MAX9595 dual SCART switch matrix routes 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
selection multiplexers, input buffers, and output buffers
for routing all inputs to selected outputs.
The MAX9595 provides programmable gain control from
+5dB to +7dB in 1dB steps for red, green, and blue com-
ponent 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 lowpass filters with
passband ripple between -1dB and +1dB from 100kHz to
5.5MHz. The MAX9595 TV audio channel features click-
less switching and programmable 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
mini-
mum output.
The MAX9595 operates with standard 5V and 12V power
supplies and supports 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 MAX9595 is available in a compact 48-pin thin
QFN package and is 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
♦ Interrupt Output Detects Changes on Slow
Switching Input
♦ 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
♦ Single-Ended Audio 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
MAX9595
Audio/Video Switch for Dual SCART Connector
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3946; Rev 2; 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 Circuit 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
MAX9595CTM+
0°C to +70°C
48 Thin QFN-EP*
(7mm x 7mm)
T4877-6
*EP = Exposed paddle.
+Denotes lead-free package.
MAX9595
Audio/Video Switch for Dual SCART Connector
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,
INTERRUPT_OUT to GNDVID ..............................-0.3V to +6V
All Audio Outputs, TV_SS,
VCR_SS to GNDAUD...............................-0.3V to (V
12
+ 0.3V)
INTERRUPT_OUT Current ................................................+50mA
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 MAX
UNITS
V
VID
Supply Voltage Range V
VID
Inferred from video gain test
4.75
5.0
5.25
V
AUD
Supply Voltage Range V
AUD
Inferred from audio gain test
4.75
5.0
5.25
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_Q
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
RGB, 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
MAX9595
Audio/Video Switch for Dual SCART Connector
_______________________________________________________________________________________ 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 MAX
UNITS
Signal-to-RMS Noise
SNR_V
V
IN
= 1V
P-P
65 dB
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 or RGB video inputs, V
IN
> V_CLMP 4 MΩ
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 3.0 3.5
ENC to stereo, gain = 0dB, V
IN
= 1V
P-P
3.02 3.52 4.02
Voltage Gain (Measured 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 which are Hi-Z)
V
IN
Gain = 0dB
0.2308
x V
12
V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

MAX9595CTM+

Mfr. #:
Buy MAX9595CTM+
Manufacturer:
Maxim Integrated
Description:
Video Switch ICs A/V Switch for Dual SCART Connecto
Lifecycle:
New from this manufacturer.
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