MAX4397SCTM+ Maxim Integrated Products, MAX4397SCTM+ Datasheet

IC SW A/V SCART CON 48-TQFN

MAX4397SCTM+

Manufacturer Part Number
MAX4397SCTM+
Description
IC SW A/V SCART CON 48-TQFN
Manufacturer
Maxim Integrated Products
Type
Switchr
Datasheet
1.MAX4397SCTM.pdf (30 pages)

Specifications of MAX4397SCTM+

Applications
DVD, Set-Top Boxes, TV
Mounting Type
Surface Mount
Package / Case
48-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX4397 dual SCART switch matrix routes audio
and video signals between an MPEG encoder and two
external SCART connectors under I
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 MAX4397D
audio encoder input is differential DC-coupled, while the
MAX4397S audio encoder input is single-ended AC-
coupled. Except for the MAX4397D’s audio encoder
input, all other inputs and outputs are AC-coupled with
internal DC-biasing set to predefined levels.
The MAX4397 provides 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 MAX4397 TV audio
channel features clickless 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
The MAX4397 operates with standard 5V and 12V
power supplies and supports slow-switching and fast-
switching signals. The I
and volume control, and selects the input source
for routing.
The MAX4397 is available in a compact 48-pin thin QFN
package and is specified over the 0°C to +70°C com-
mercial temperature range.
19-3618; Rev 3; 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.
Audio/Video Switch for Dual SCART Connectors
Satellite Set-Top Boxes
Cable Set-Top Boxes
TVs
VCRs
DVDs
________________________________________________________________ Maxim Integrated Products
General Description
2
C interface programs the gain
RMS
minimum output.
Applications
2
C control, and
♦ Video Outputs Drive 2V
♦ Audio Outputs Drive 3V
♦ Clickless, Popless Audio Gain Control
♦ AC-Coupled Video Inputs with Internal Clamp
♦ DC-Coupled Video Outputs
♦ Composite Video Signal Created Internally from
♦ Internal Video Reconstruction Filters Provide
♦ Differential (MAX4397D) or Single-Ended
♦ Red/Chroma Switch for Bidirectional I/O
♦ I
♦ I
♦ Meets EN50049-1, IEC 933-1, Canal+, and BSkyB
*EP = Exposed paddle.
Pin Configuration and Typical Application Circuits appear at
end of data sheet.
System Block Diagram appears at end of data sheet.
MAX4397DCTM
MAX4397SCTM
and Switching
and Bias
Y/C Inputs
-40dB at 27MHz
(MAX4397S) Audio Encoder Input
to -56dB
Requirements
2
2
C-Programmable RGB Gain from +5dB to +7dB
C-Programmable Audio Gain Control from +6dB
PART
0°C to +70°C
0°C to +70°C
RANGE
TEMP
Ordering Information
P-P
RMS
PIN-PACKAGE
48 Thin QFN-EP*
(7mm x 7mm)
48 Thin QFN-EP*
(7mm x 7mm)
into 150Ω
into 10kΩ
Features
T4877-6
T4877-6
CODE
PKG
1

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MAX4397SCTM+ Summary of contents

Page 1

... Satellite Set-Top Boxes Cable Set-Top Boxes TVs VCRs DVDs ________________________________________________________________ Maxim Integrated Products 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. ♦ Video Outputs Drive 2V ♦ Audio Outputs Drive control, and ♦ ...

Page 2

Audio/Video Switch for Dual SCART Connectors ABSOLUTE MAXIMUM RATINGS V to GNDVID........................................................-0.3V to +6V VID V to GNDAUD .....................................................-0.3V to +14V GNDAUD ....................................................-0.3V to +6V AUD GNDAUD to GNDVID ............................................-0.1V to +0.1V All Video Inputs, ENCIN_FS, VCRIN_FS, ...

Page 3

Audio/Video Switch for Dual SCART Connectors ELECTRICAL CHARACTERISTICS (continued 12V 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V 12 VID AUD V to GNDAUD, and V to GNDVID ...

Page 4

Audio/Video Switch for Dual SCART Connectors ELECTRICAL CHARACTERISTICS (continued 12V 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V 12 VID AUD V to GNDAUD, and V to GNDVID ...

Page 5

Audio/Video Switch for Dual SCART Connectors ELECTRICAL CHARACTERISTICS (continued 12V 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V 12 VID AUD V to GNDAUD, and V to GNDVID ...

Page 6

Audio/Video Switch for Dual SCART Connectors ELECTRICAL CHARACTERISTICS (continued 12V 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V 12 VID AUD V to GNDAUD, and V to GNDVID ...

Page 7

Audio/Video Switch for Dual SCART Connectors (V = 12V 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V 12 VID AUD V to GNDAUD GNDVID no load ...

Page 8

Audio/Video Switch for Dual SCART Connectors (V = 12V 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from V 12 VID AUD V to GNDAUD GNDVID no load ...

Page 9

Audio/Video Switch for Dual SCART Connectors PIN NAME MAX4397D MAX4397S 1 1 SDA 2 2 SCL 3 3 DEV_ADDR 4 — ENC_INL+ — 4 ENC_INL 5 — ENC_INL- — N.C. 6 — ENC_INR+ — 6 ENC_INR 7 — ...

Page 10

Audio/Video Switch for Dual SCART Connectors PIN NAME MAX4397D MAX4397S 29 29 RF_CVBS_OUT 30 30 TV_Y/CVBS_OUT 31 31 TV_R/C_OUT 32 32 TV_G_OUT 33 33 TV_B_OUT 34 34 VCR_Y/CVBS_OUT VCR SCART Luma/Composite Video Output. Internally biased at 1V VCR_R/C_OUT ...

Page 11

Audio/Video Switch for Dual SCART Connectors The slow-switching feature allows for bidirectional, tri- level, slow-switching input and output signals at pin VCR_SS and TV_SS, respectively. The slow-switching signals from the VCR set the aspect ratio or video source of the ...

Page 12

Audio/Video Switch for Dual SCART Connectors All video inputs are AC-coupled with an external 0.1µF capacitor. Either a clamp or bias circuit sets the DC input level of the video signals. The clamp circuit posi- tions the sync tip of ...

Page 13

Audio/Video Switch for Dual SCART Connectors The DC level at the video outputs is controlled so that coupling capacitors are not required, and all of the video outputs are capable of driving a DC-coupled, 150Ω, back-terminated coax load with respect ...

Page 14

Audio/Video Switch for Dual SCART Connectors Both right and left channels have a stereo output for the TV and VCR SCART. The monaural output, which is a mix of the TV right and left channels, drives the RF modulator, RF_MONO_OUT. ...

Page 15

Audio/Video Switch for Dual SCART Connectors AUDIO INPUTS ENC_INL TV_INL VCR_INL ENC_INR TV_INR VCR_INR MUTE MUTE MUTE IS AN INTERNAL SIGNAL Figure 5. MAX4397S Audio Section Features Singled-Ended Encoder Input To implement the zero-crossing function when switch- ing audio signals, ...

Page 16

Audio/Video Switch for Dual SCART Connectors The TV channel volume control ranges from -56dB to +6dB in 2dB steps. The VCR volume control settings are programmable for -6dB, 0dB, and +6dB. These gain levels are referenced to the application inputs, ...

Page 17

Audio/Video Switch for Dual SCART Connectors Data Format of the I Write Mode Slave Address Register S A (Write address) Address Read Mode Slave Slave Address Register Address (Write Address (Read address) address Start ...

Page 18

Audio/Video Switch for Dual SCART Connectors Power Supplies and Bypassing The MAX4397 features single 5V and 12V supply opera- tion and requires no negative supply. The +12V supply V is for the SCART switching function. For pin V 12 place ...

Page 19

Audio/Video Switch for Dual SCART Connectors Table 4. Data Format for Read Mode REGISTER ADDRESS BIT 7 (HEXADECIMAL) 0Eh Thermal SHDN Table 5. Register 00h: TV Audio control DESCRIPTION TV Audio Mute TV Volume Control TV Zero-Crossing Detector TV Volume ...

Page 20

Audio/Video Switch for Dual SCART Connectors Table 7. Register 06h: TV Video Input Control DESCRIPTION 7 Input Sources for TV Video Input Sources for TV_G_OUT and TV_B_OUT RGB Gain 0 TV_R/C_IN Clamp/Bias 1 20 ______________________________________________________________________________________ BIT ...

Page 21

Audio/Video Switch for Dual SCART Connectors Table 8. Register 07h: TV Video Output Control DESCRIPTION 7 Set TV Function Switching TV_R/C_OUT Ground Fast Blank (Fast Switching) TV_Y/CVBS_OUT Switch RF_CVBS_OUT Switch Table 9. Register 08h: VCR Video Input Control DESCRIPTION 7 ...

Page 22

Audio/Video Switch for Dual SCART Connectors Table 10. Register 09h: VCR Video Output Control DESCRIPTION 7 6 Set VCR Function Switching VCR_R/C_OUT ground Table 11. Register 0Dh: Output Enable DESCRIPTION 7 RF_CVBS_OUT TVOUT_FS TV_Y/CVBS_OUT TV_B_OUT TV_G_OUT TV_R/C_OUT VCR_R/C_OUT 0 VCR_Y/CVBS_OUT ...

Page 23

Audio/Video Switch for Dual SCART Connectors Table 12. Register 0Eh Status DESCRIPTION Slow Switch Input VCR Slow Switch Input 0 Power-On Reset 1 0 Thermal Shutdown 1 ______________________________________________________________________________________ BIT ...

Page 24

Audio/Video Switch for Dual SCART Connectors SDA 1 SDA SCL 2 SCL DEV_ADDR 3 DEV_ADDR 4.7kΩ ENC_INL+_SC 4 ENC_INL+ 9.4kΩ 4.7kΩ ENC_INL-_SC 5 ENC_INL- 4.7kΩ ENC_INR+_SC 6 ENC_INR+ 9.4kΩ 4.7kΩ ENC_INR-_SC 7 ENC_INR- 3.3kΩ VCR_INR 8 3.3kΩ 3.3kΩ VCR_INR_SC 3.3kΩ ...

Page 25

Audio/Video Switch for Dual SCART Connectors SDA 1 SDA SCL 2 SCL DEV_ADDR 3 DEV_ADDR 4.7kΩ ENC_INL_SC ENC_INL 4 4.7kΩ N.C. 5 4.7kΩ ENC_INR_SC 6 ENC_INR 4.7kΩ 7 N.C. 3.3kΩ VCR_INR 8 3.3kΩ 3.3kΩ VCR_INR_SC 3.3kΩ VCR_INL 9 3.3kΩ 3.3kΩ ...

Page 26

Audio/Video Switch for Dual SCART Connectors RGB CVBS, Y/C VIDEO ENCODER FAST SWITCHING R/L AUDIO AUDIO DAC ADDRESS SCL µC SDA RF_CVBS RF MOD MONO AUDIO 26 ______________________________________________________________________________________ System Block Diagram VID AUD 12V 5V 5V ...

Page 27

Audio/Video Switch for Dual SCART Connectors TOP VIEW TV_R/C_IN TV_Y/CVBS_IN VCR_Y/CVBS_IN VCR_R/C_IN VCR_G_IN VCR_B_IN ENC_Y/CVBS_IN ENC_R/C_IN ENC_G_IN ENC_B_IN ENC_Y_IN ENC_C_IN ______________________________________________________________________________________ MAX4397D ...

Page 28

Audio/Video Switch for Dual SCART Connectors TOP VIEW TV_R/C_IN TV_Y/CVBS_IN VCR_Y/CVBS_IN VCR_R/C_IN VCR_G_IN VCR_B_IN ENC_Y/CVBS_IN ENC_R/C_IN ENC_G_IN ENC_B_IN ENC_Y_IN ENC_C_IN 28 ______________________________________________________________________________________ Pin Configurations (continued ...

Page 29

Audio/Video Switch for Dual SCART Connectors (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) E E/2 D/2 D ______________________________________________________________________________________ DETAIL A e (ND- ...

Page 30

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 30 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Package Information (continued) PACKAGE OUTLINE 32, 44, 48, 56L THIN QFN, 7x7x0 ...

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