MAX7443ESA Fast Delivery |IC PHOENIX CO.,LIMITED

MAX7443ESA ,Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C OutputsApplications MAX7443ESA -40°C to +85°C 8 SO-EP* —MAX7444ETA -40°C to +85°C 8 Thin QFN-EP* AFYSet-To ..
MAX7444ESA ,Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C OutputsApplications MAX7443ESA -40°C to +85°C 8 SO-EP* —MAX7444ETA -40°C to +85°C 8 Thin QFN-EP* AFYSet-To ..
MAX7444ESA+ ,Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C OutputsApplicationsMAX7444ETA 8 Thin QFN-EP* AFY T833-1MAX7444ESA 8 SO-EP* — S8E-12Set-Top Boxes/HDR/DVD D ..
MAX744A ,5V, Step-Down, Current-Mode PWM DC-DC ConvertersELECTRICAL CHARACTERISTICS(Circuit of Figure 3, V+ = 9V for the MAX730A, V+ = 12V for the MAX738A/M ..
MAX744ACPA ,5V, step-down, current-mode PWM DC-DC converter accept inputs between 65V and 16V and deliver 750mA. 159kHz to 212.5kHz guaranteed oscillator frequency limits.ELECTRICAL CHARACTERISTICS(Circuit of Figure 3, V+ = 9V for the MAX730A, V+ = 12V for the MAX738A/M ..
MAX744ACPA+ ,5V, Step-Down, Current-Mode PWM DC-DC ConvertersApplicationsMAX730AC/D 0°C to +70°C Dice*Portable InstrumentsMAX730AEPA -40°C to +85°C 8 Plastic DI ..
MB6M ,MINIATURE GLASS PASSIVATED SINGLE-PHASE BRIDGE RECTIFIERThermal Characteristics (TA = 25°C unless otherwise noted)Parameter Symbol MB2M MB4M MB6M UnitDevic ..
MB6S ,Bridge RectifiersThermal Characteristics (T = 25°C unless otherwise noted)AParameter Symbol MB2S MB4S MB6S UnitDevic ..
MB7117E , Schottky TTL 2048-Bit Bipolar Programmable Read-Only Memory

MAX7443ESA
Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs
General Description
The MAX7443/MAX7444 are low-cost, triple-channel
video reconstruction filters for S-video and CVBS video
signals. These devices are ideal for anti-aliasing and
DAC smoothing video applications such as set-top
boxes, DVD players, hard-disk recorders (HDRs), and
personal video recorders. These filters operate from a
single +5V supply. They are optimized for NTSC, PAL,
and standard-definition digital TV (SDTV) video systems.
Each channel consists of a lowpass filter and an
adjustable-gain output buffer capable of driving two
standard 150Ωvideo loads. The output buffers can drive
either an AC or a DC load such that the blanking level
voltage after the backmatch resistor is less than 1V. The
Y and C video inputs are summed to produce the com-
posite video output. The MAX7444 offers high-
frequency boost to improve picture sharpness. The
MAX7443 has a maximum flat-frequency response.
The MAX7443/MAX7444 are available in a tiny 8-pin thin
QFN and an 8-pin SO package with exposed pad, and
are fully specified over the -40°C to +85°C extended
temperature range.
Applications
FeaturesTriple-Channel Filter and Buffer for CVBS and
Y/C (S-Video) Filter Response Ideal for NTSC, PAL, and
Interlaced SDTV Signals41dB (typ) Stopband Attenuation at 27MHz-0.3dB (typ) Passband ResponseLow Blanking Level Voltage Allows DC-Coupled
OutputEach Channel Drives Two 150ΩVideo Loads+5V Single-Supply VoltageTiny 8-Pin Thin QFN or 8-Pin SO Packages
MAX7443/MAX7444riple-Channel Video Reconstruction Filter and
Buffer for Composite and Y/C Outputs
Ordering Information
19-2749; Rev 0; 1/03
Functional Diagram
Set-Top Boxes/HDR/DVD
Security Cameras/Digital
Cameras
Game Consoles
Digital VCRs
Every Composite,
S-Video Output for NTSC,
PAL, SDTV
*EP = Exposed pad.
Selector Guide appears at end of data sheet.
MAX7443/MAX7444
Triple-Channel Video Reconstruction Filter and
Buffer for Composite and Y/C Outputs
ABSOLUTE MAXIMUM RATINGS
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.
VCCto GND...........................................................................+6V
All Other Pins to GND.................................-0.3V to (VCC+ 0.3V)
Maximum Current into Any Pin Except VCCand GND.....±50mA
Continuous Power Dissipation (TA= +70°C)
8-Pin Thin QFN (derate 24.4mW/°C above +70°C)...1951mW
8-Pin SO (derate 18.9mW/°C above +70°C)..............1509mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(VCC= +5V ±5%, CL= 0 to 20pF, RL= 75Ωto GND for DC-couple, RL= 75Ωto VCC/2 for AC-couple, CYIN= CCIN= 0.1µF,
MAX7443/MAX7444
Triple-Channel Video Reconstruction Filter and
Buffer for Composite and Y/C Outputs
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +5V ±5%, CL= 0 to 20pF, RL= 75Ωto GND for DC-couple, RL= 75Ωto VCC/2 for AC-couple, CYIN= CCIN= 0.1µF, = TMINto TMAX, GSET = GND (6dB) and VCC(9.5dB), unless otherwise noted. Typical values are at TA= +25°C.)
Typical Operating Characteristics
(VCC= +5V, TA= +25°C, unless otherwise noted.)
MAX7443/MAX7444
Triple-Channel Video Reconstruction Filter and
Buffer for Composite and Y/C Outputs
SUPPLY CURRENT
vs. TEMPERATURE
MAX7443/44 toc07
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
DIFFERENTIAL GAIN
MAX7443/44 toc08
DIFFERENTIAL PHASE (DEGREES)2456724567
DIFFERENTIAL GAIN (%)
DIFFERENTIAL PHASE
MULTIBURST RESPONSE
MAX7443/44 toc09
YIN
200mV/div
YOUT
200mV/div
10µs/div
Typical Operating Characteristics (continued)
(VCC= +5V, TA= +25°C, unless otherwise noted.)
Detailed Description
The primary function of the MAX7443/MAX7444 is to fil-
ter and buffer the encoder DAC outputs that contain
digital video information in applications such as set-top
boxes, hard-disk recorders, DVD players, and digital
VCRs. These devices reconstruct and clean up analog
video signals. Each MAX7443/MAX7444 consists of a
lowpass filter and an adjustable-gain output video
buffer that is capable of driving two standard 150Ω
video loads. The luma (YIN) and chroma (CIN) video
inputs are summed internally to provide the composite
(CVOUT) video output.
These devices operate from a single +5V supply. The
filters have a nominal cutoff frequency optimized for
NTSC, PAL, and SDTV.
Filter
Filter Response
The reconstruction filter consists of two 2nd-order
Sallen-Key stages. The Butterworth-type response fea-
tures a maximally flat passband for NTSC and PAL
bandwidths. The stopband offers 41dB (typ) of attenua-
tion at sampling frequencies of 27MHz and above (see
Typical Operating Characteristics).
High-Frequency Boost
The high-frequency boost available in the MAX7444
compensates for signal degradation and rolloff in the
video encoder, which increases the image sharpness.
The MAX7443 has a flat response over the video band-
width.
Output Buffer
The output buffer drives two 150Ωvideo loads with a
2VP-Psignal. The adjustable gain of the output buffer
provides a gain of 6dB, 9.5dB, and 12dB, which are
selected by tying the GSET pin to GND, VCC, or float-
ing, respectively. The MAX7443/MAX7444 can drive an
AC load or drive the video load directly without using
the large output capacitor. The output buffer drives a
DC load with an output blanking level of less than 1V.
MAX7443/MAX7444
Triple-Channel Video Reconstruction Filter and
Buffer for Composite and Y/C Outputs
MAX7443/MAX7444
Triple-Channel Video Reconstruction Filter and
Buffer for Composite and Y/C Outputs
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to /packages.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX7443ESA	MAX	N/a	37	avai	Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs