MAX9595CTM+T Maxim Integrated Products, MAX9595CTM+T Datasheet - Page 11

• Manufacturer Part Number: MAX9595CTM+T
• Description: IC AUDIO/VIDEO SWIT DUAL 48TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX9595CTM+T

• Function: Audio/Video Switch
• Circuit: 2 x SCART
• Voltage Supply Source: Single, Dual Supply
• Voltage - Supply, Single/dual (±): 4.75 V ~ 5.25 V, ±11.4 V ~ 12.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Fast switching consists of two inputs from the encoder
and VCR, and one output to the TV to insert an on-
screen display (OSD). Fast switching is used to route
video signals from the VCR or from the encoder to the
TV. In addition, the fast-switching output can be config-
ured to a high or low voltage. Fast switching is con-
trolled through the I
The digital block contains the 2-wire interface circuitry,
control, and status registers. The MAX9595 can be
configured through an I
DEV_ADDR sets the I
Figure 1. MAX9595 Video Section Functional Diagram
Audio/Video Switch for Dual SCART Connector
VCR_Y/CVBS_IN
ENC_Y/CVBS_IN
TV_Y/CVBS_IN
VCR_R/C_IN
ENC_R/C_IN
TV_R/C_IN
VCR_B_IN
VCR_G_IN
ENC_G_IN
ENC_B_IN
ENC_Y_IN
ENC_C_IN
VCRIN_FS
ENCIN_FS
VCR_SS
TV_SS
______________________________________________________________________________________
2
C interface.
2
C-compatible address.
CLAMP/BIAS
CLAMP/BIAS
CLAMP/BIAS
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
BIAS
0.7V
0.7V
2
C-compatible interface.
MAX9595
BIAS
FILTER
5V
0V
2kΩ
2kΩ
The MAX9595 switches video signals between an MPEG
decoder, TV SCART, and VCR SCART. The video switch
includes reconstruction filters, multiplexed video ampli-
fiers, and a Y-C mixer driver for an RF modulator. See
Figure 1 for the functional diagram of the video section.
While the SCART connector supports RGB, S-video, and
composite video formats, RGB, and S-video typically
share a bidirectional set of SCART connector pins.
SW/MONITOR
MIXER
V
12
FILTER
FILTER
FILTER
FILTER
FILTER
PULLDOWN
PULLDOWN
VCRRCOUT
SCART Video Switching
TVRCOUT
5dB, 6dB, OR 7dB
5dB, 6dB, OR 7dB
5dB, 6dB, OR 7dB
VGA
VGA
VGA
x1
x2
x2
x2
x2
N
N
VCR_Y/CVBS_OUT
VCR_R/C_OUT
TV_G_OUT
TV_Y/CVBS_OUT
TVOUT_FS
INTERRUPT_OUT
TV_R/C_OUT
TV_B_OUT
RF_CVBS_OUT
11