Rainbow-electronics MAX4399 Manual de usuario

Busca en linea o descarga Manual de usuario para Vídeo Rainbow-electronics MAX4399. Rainbow Electronics MAX4399 User Manual Manual de usuario

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 32
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 0
General Description
The MAX4399 audio/video switch is ideal for digital set-
top box applications. The MAX4399 provides video and
audio routing from the MPEG decoder source to the TV,
VCR, and AUX SCART (peritelevision) connectors. In
addition, the TV audio channel features clickless
switching and programmable volume control from
-56dB to +6dB in 2dB steps. The device can mix an
auxiliary audio tone into the TV audio channel and can
mix the stereo audio signal into a mono audio signal.
The MAX4399 directly drives an external RF modulator
with a composite video with blanking and sound
(CVBS) signal created by an on-chip luma/chroma
(Y/C) mixer and external RLC trap filter. The MAX4399
features a fast-mode I
2
C™-compatible 2-wire interface
allowing communication at data rates up to 400kbps.
The MAX4399 operates with standard +5V and +12V
single supplies and supports slow and fast switching.
All video and audio inputs are AC-coupled. The DC
biases of all input and output signals are set to pre-
defined levels. All video outputs, including the RF mod-
ulator, drive standard 150 loads. Red, green, and
blue (RGB) outputs feature a programmable gain of
+6dB ±1dB. All other video outputs have a fixed +6dB
gain. The VCR and AUX audio output gains are pro-
grammable for -6dB, 0dB, and +6dB.
The MAX4399 is available in a compact 68-pin thin
QFN package and is specified for the 0°C to +70°C
commercial temperature range. The MAX4399 evalua-
tion kit is available to help speed designs.
Applications
Satellite Receivers
Satellite Set-Top Boxes
Cable Set-Top Boxes
Terrestrial Set-Top Boxes
Game Consoles
TVs
Digital Television (DTV)
VCRs
DVD Players
DVD+R/W Players
Features
Low -86dB Video Signal-to-Noise Ratio
150 Driver on All Video Outputs, Including the
RF Modulator
Full CVBS Loop-Through on AUX SCART
Programmable Audio Gain Control of -56dB to
+6dB (TV Audio Outputs)
Clickless Audio Switching (TV Audio Outputs)
Programmable Clamp or Bias on Red/Chroma
Video Inputs
Programmable Video Gain of +6dB, ±1dB on RGB
Outputs
+5V and +12V Standard Supply Voltages
27MHz -3dB Large-Signal Bandwidth on All Video
Drivers
Supports Three SCART Connectors
MAX4399
Audio/Video Switch for Three SCART
Connectors
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
MAX4399
SCART
SWITCH
MATRIX
I
2
C-COMPATIBLE
2-WIRE INTERFACE
STB
ENCODER
RGB
S-VHS
CVBS
R/L AUDIO
FAST SWITCHING
VCR SCART
CONNECTOR
TONE INPUT
CVBS
S-VHS
RGB
R/L AUDIO
FAST SWITCHING
SLOW SWITCHING
TV SCART
CONNECTOR
AUXILIARY
SCART
CONNECTOR
CHANNEL
3/4 RF
MODULATOR
SUBCARRIER TRAP
CVBS
S-VHS
RGB
R/L AUDIO
SLOW SWITCHING
FAST SWITCHING
CVBS
MONO AUDIO
R/L PHONO AUDIO
CVBS
S-VHS
R/L AUDIO
SLOW SWITCHING
VIDEO
GROUND
DIGITAL
GROUND
AUDIO
GROUND
VIDEO
+5V
DIGITAL
+5V
AUDIO
+12V
SATELLITE DISH
Typical Operating Circuit
19-2925; Rev 0; 8/03
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.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
MAX4399CTK 0°C to +70°C 68 Thin QFN
Purchase of I
2
C components of Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys
a license under the Philips I
2
C Patent Rights to use these com-
ponents in an I
2
C system, provided that the system conforms
to the I
2
C Standard Specification as defined by Philips.
Vista de pagina 0
1 2 3 4 5 6 ... 31 32

Indice de contenidos

Pagina 1 - Connectors

General DescriptionThe MAX4399 audio/video switch is ideal for digital set-top box applications. The MAX4399 provides video andaudio routing from the

Pagina 2

MAX4399Detailed DescriptionThe MAX4399 audio/video switch matrix connects audioand video signals between different ports. In the case ofa set-top box,

Pagina 3

The inputs and outputs are grouped by SCART connec-tors: TV, VCR, and AUX. While the SCART connectorsupports RGB, S-video, and composite formats, RGBa

Pagina 4

MAX4399from the Y and C signals to drive the legacyRF_CVBS_OUT output. The circuit is shown as a sum-ming point with bias in Figure 2. The MAX4399 sum

Pagina 5

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 13CLAMP/BIAS

Pagina 6

MAX4399Audio/Video Switch for Three SCARTConnectors14 ______________________________________________________________________________________0dB0dB0dBM

Pagina 7

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 15VCR_L_OUTV

Pagina 8

MAX4399Zero-Cross (Clickless) SwitchingThe TV channel incorporates a zero-crossing detect(ZCD) circuit that minimizes click noise due to abruptsignal

Pagina 9

I2C CompatibilityThe MAX4399 is compatible with existing I2C systems.SCL and SDA are high-impedance inputs. SDA has anopen drain that pulls the data l

Pagina 10

MAX43992-Wire Interface Slave AddressProgrammingConnect DEV_ADDR to G_DIG or V_DIG to set theMAX4399 write and read addresses as shown in Table 2.Data

Pagina 11

Hot-Plug of SCART Connectors—FloatingChassis DischargeThe MAX4399 features high-ESD protection on allSCART inputs and outputs, and requires no externa

Pagina 12

MAX4399Audio/Video Switch for Three SCARTConnectors2 _______________________________________________________________________________________ABSOLUTE M

Pagina 13

MAX4399Audio/Video Switch for Three SCARTConnectors20 ______________________________________________________________________________________68ENC_FS_I

Pagina 14

To better protect the MAX4399 against excessive volt-ages during the cable discharge event, additional 75Ωresistors should be placed in series with al

Pagina 15

MAX4399Audio/Video Switch for Three SCARTConnectors22 ______________________________________________________________________________________Table 6. R

Pagina 16

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 23Table 7. R

Pagina 17

MAX4399Audio/Video Switch for Three SCARTConnectors24 ______________________________________________________________________________________Table 8. R

Pagina 18

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 25Table 9. R

Pagina 19

MAX4399Audio/Video Switch for Three SCARTConnectors26 ______________________________________________________________________________________Table 12.

Pagina 20

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 27Table 14.

Pagina 21

MAX4399Audio/Video Switch for Three SCARTConnectors28 ______________________________________________________________________________________Table 17.

Pagina 22

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 29Read Mode:

Pagina 23

MAX4399Audio/Video Switch for Three SCARTConnectors_______________________________________________________________________________________ 3ELECTRICAL

Pagina 24

MAX4399Audio/Video Switch for Three SCARTConnectors30 ______________________________________________________________________________________68ENC_FS_I

Pagina 25

MAX4399Audio/Video Switch for Three SCARTConnectors______________________________________________________________________________________ 315859606162

Pagina 26

MAX4399Audio/Video Switch for Three SCARTConnectorsMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied

Pagina 27

MAX4399Audio/Video Switch for Three SCARTConnectors4 _______________________________________________________________________________________ELECTRICAL

Pagina 28

MAX4399Audio/Video Switch for Three SCARTConnectors_______________________________________________________________________________________ 5ELECTRICAL

Pagina 29

MAX4399Audio/Video Switch for Three SCARTConnectors6 _______________________________________________________________________________________Typical Op

Pagina 30

MAX4399Audio/Video Switch for Three SCARTConnectors_______________________________________________________________________________________ 7AUDIO THD+

Pagina 31

MAX4399Audio/Video Switch for Three SCARTConnectors8 _______________________________________________________________________________________Pin Descri

Pagina 32

MAX4399Audio/Video Switch for Three SCARTConnectors_______________________________________________________________________________________ 9PIN NAME F

Comentarios a estos manuales

Sin comentarios