max9505etet Maxim Integrated Products, Inc., max9505etet Datasheet

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max9505etet

Manufacturer Part Number
max9505etet
Description
Max9505 Directdrive Video Amplifier With Reconstruction Filter And Analog Switch
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX9505 filters and amplifies standard-definition
video signals. Maxim’s DirectDrive™ technology elimi-
nates large output-coupling capacitors and sets the
video black level to ground. An internal reconstruction
filter smoothes the steps and reduces the spikes on the
video signal from the video digital-to-analog converter
(DAC). The input of the MAX9505 can be directly con-
nected to the output of a DAC. The MAX9505 provides
a compact, integrated, and low-power solution.
The reconstruction filter typically has 3dB attenuation at
9MHz and 50dB attenuation at 27MHz, and ±1dB pass-
band flatness to 5.5MHz.
Maxim’s DirectDrive uses an integrated charge pump
and a linear regulator to create a negative power supply
to drive the sync below ground. The charge pump injects
so little noise into the video output that the picture is visi-
bly flawless.
The MAX9505 features an internal 1.7Ω analog switch
that interfaces with a 4-pole multimedia jack. This
switch allows one of the poles to be set as a video
input, a video output, or a microphone input.
The MAX9505 is offered in space-saving 16-pin QSOP
and 16-pin TQFN packages and is specified over the
-40°C to +85°C extended temperature range.
19-3675; Rev 1; 8/05
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.
Mobile Phones/Smartphones
Space-Constrained, Low-Power Audio/Video
Portable Devices
Reconstruction Filter and Analog Switch
________________________________________________________________ Maxim Integrated Products
0 TO 50mV
General Description
0V
Applications
DirectDrive Video Amplifier with
VIDIN
S
OUT
BUFFER
MAX9505
LOWPASS
FILTER
♦ DC-Coupled Output
♦ Direct Connection to Video DAC
♦ Video Output Black Level Set to Ground
♦ Video Reconstruction Filter with 50dB
♦ 6dB Gain
♦ 1.7Ω R
♦ 10nA Shutdown Supply Current
♦ 2.7V to 3.6V Single-Supply Operation
*All devices are specified over the -40°C to +85°C operating
temperature range.
Functional Diagram/Typical Operating Circuit and Pin
Configurations appear at end of data sheet.
REGULATOR
MAX9505EEE
MAX9505ETE
CHARGE
LINEAR
Attenuation at 27MHz
PUMP
AMP
6dB
PART*
ON
S
VIDOUT
IN
Analog Switch
0V
PIN-
PACKAGE
16 QSOP
16 TQFN
Ordering Information
-0.1V TO
+0.1V
PKG CODE
Block Diagram
T1633-4
E16-4
Features
TOP MARK
ACW
1

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max9505etet Summary of contents

Page 1

Rev 1; 8/05 Reconstruction Filter and Analog Switch General Description The MAX9505 filters and amplifies standard-definition video signals. Maxim’s DirectDrive™ technology elimi- nates large output-coupling capacitors and sets the video black level to ground. An internal reconstruction filter smoothes ...

Page 2

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch ABSOLUTE MAXIMUM RATINGS V to SGND............................................................-0.3V to +4V DD VIDIN to SGND .........................................................-0.3V to +4V BIAS to SGND ............................................-0. MODE0, MODE1 to SGND .......................................-0. ...

Page 3

Reconstruction Filter and Analog Switch ELECTRICAL CHARACTERISTICS (continued CPV = MODE1 = 3.0V, MODE0 = SGND = GND = CPGND = 0V 1µ ...

Page 4

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch AC ELECTRICAL CHARACTERISTICS (V = CPV = MODE1 = 3.0V, MODE0 = SGND = GND = CPGND = 0V 1µ ...

Page 5

Reconstruction Filter and Analog Switch OUT V NO MODE0 LOGIC SGND INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE OUT Figure ...

Page 6

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch (V = CPV = MODE1 = 3.0V, MODE0 = SGND = GND = CPGND = 0V, no load 1µ ...

Page 7

Reconstruction Filter and Analog Switch (V = CPV = MODE1 = 3.0V, MODE0 = SGND = GND = CPGND = 0V, no load 1µ ...

Page 8

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch (V = CPV = MODE1 = 3.0V, MODE0 = SGND = GND = CPGND = 0V, no load 1µ ...

Page 9

Reconstruction Filter and Analog Switch PIN NAME QSOP TQFN Negative Power Supply. Connect to CPV CPV Charge-Pump Negative Power Supply. Bypass with a 1µF capacitor to CPGND C1N Charge-Pump Flying Capacitor ...

Page 10

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch 0V 0V 2ms/div Figure 3. AC-Coupled Output Typically, the black level of the video signal created by the video DAC is around 300mV. The MAX9505 shifts the black level to ground ...

Page 11

Reconstruction Filter and Analog Switch Table 1. Operating Modes OPERATING MODE MODE1 Shutdown Mode 0 Extended Range Switch 0 Mode Video Output Mode 1 Normal Switch Mode 1 Short-Circuit Protection The MAX9505 typical operating circuit includes a 75Ω back-termination resistor ...

Page 12

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch TOP VIEW 12 11 VIDOUT MAX9505 CPV 3mm x 3mm TQFN 100kΩ MODE1 MODE0 VIDEO ASIC VIDIN DAC ...

Page 13

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch Functional Diagram/Typical Operating Circuits (continued) 2.8V FROM LDO BASEBAND IC 2kΩ 1µF S MIC AMP 2kΩ BIAS 100kΩ MODE1 MODE0 SGND C4 GND 1µF CPV C3 1µF NORMAL SWITCH ...

Page 14

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch Functional Diagram/Typical Operating Circuits (continued) VIDEO DECODER 75Ω 100kΩ MODE1 MODE0 C4 1µF C3 1µF NORMAL SWITCH MODE POLE 1 USED AS A VIDEO INPUT 14 ______________________________________________________________________________________ S OUT ...

Page 15

Reconstruction Filter and Analog Switch (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ DirectDrive Video Amplifier with Package Information PACKAGE OUTLINE, QSOP .150", .025" ...

Page 16

DirectDrive Video Amplifier with Reconstruction Filter and Analog Switch (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) MARKING D/2 D 0.10 C PKG 12L 3x3 ...

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