参数资料
| 型号： | MAX9501EEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/9页 |
| 文件大小： | 0K |
| 描述： | IC FILTER HDTV 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 滤波器类型： | 低通 |
| 频率 - 截止或中心： | 30MHz |
| 滤波器数： | 3 |
| 滤波器阶数： | 6th |
| 电源电压： | ±4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
MAX9500/MAX9501
Triple-Channel HDTV Filters
_______________________________________________________________________________________
7
Detailed Description
The MAX9500/MAX9501 are fully integrated solutions
for filtering and buffering HDTV signals. The MAX9500
operates from a single +5V supply, while the MAX9501
operates from dual ±5V supplies. The MAX9500/
MAX9501 interface between the current-output DACs of
an ATSC, MPEG decoder, and the external connections
of a television, set-top box, or DVD player. The
MAX9500/MAX9501 feature a DC-coupled input buffer
with very low input capacitance, highly selective low-
pass filters to remove out-of-band noise, and a gain of
+6dB in the output amplifier to drive 75
back-termi-
nated loads to unity gain. The DC-coupled input buffer
eliminates sync crush, droop, and field tilt. The output
load can be DC- or AC-coupled.
Filter
The MAX9500/MAX9501 reconstruction filters feature a
6th-order elliptical response, providing a 1.5dB flat
passband response up to 30MHz. The filter meets the
selectivity requirements of the EIA-770.3/SMPTE 274M
filtering template, achieving > 40dB attenuation at
44.25MHz. The MAX9500/MAX9501 can also be used
as anti-aliasing filters for HDTV component inputs.
Output Buffer
The MAX9500/MAX9501 output buffers provide +6dB of
gain and can drive 2VP-P into a single or double back-ter-
minated load (150
or 75, respectively) directly to
ground. The output can be AC-coupled or DC-coupled.
Applications Information
Input Considerations
The MAX9500/MAX9501 inputs are normally DC-cou-
pled. No AC-coupling capacitors are required because
the input voltage range includes ground and extends
up to 1.4V, allowing the MAX9500/MAX9501 to be
directly connected to the output of a single-supply, cur-
rent-output DAC without any external bias network.
The MAX9500/MAX9501 inputs can be AC-coupled.
Use a fixed bias or video clamp to set the DC bias to
ensure that the negative peak of the video signal is as
near to 0V as possible. A video clamp is preferred
because it limits the total swing of the signal and holds
the blanking level constant.
Output Considerations
The MAX9500/MAX9501 outputs are normally DC-cou-
pled, so no AC-coupling capacitors are required. For 0V
input, the MAX9500 output voltage is 0.8V and the
MAX9501 output voltage is 0V, typical. Connect the
MAX9500/MAX9501 directly to a video cable with a 75
series back-termination resistor to match the impedance
of the cable. Properly terminate the other end of the
cable with a 75
load. The MAX9500/MAX9501 outputs
can sink and source current allowing the device to be
AC-coupled. However, AC-coupling the outputs will
degrade the tilt.
Power-Supply Bypassing and Layout
Considerations
The MAX9500 operates from a single +5V supply while
the MAX9501 operates from dual ±5V supplies. Bypass
VCC and VEE (MAX9501) to GND with a 0.1F capacitor
as close to the device as possible, and an additional
1F capacitor in parallel if any significant low-frequency
disturbances are present in the vicinity of the
MAX9500/MAX9501. Use an extensive ground plane to
ensure optimum performance.
The input and output termination resistors should be
placed as close to the device as possible to avoid per-
formance degradation in the frequency response.
The PC board traces at the output should have 75
characteristic impedance when matching into a 75
characteristic impedance cable. Keep the board trace
at the inputs and outputs of the MAX9500/MAX9501 as
short as possible to minimize the parasitic stray capaci-
tance and noise pickup.
Pin Description
PIN
MAX9500
MAX9501
NAME
FUNCTION
1, 7, 8,
9, 16
—
SUBG
Substrate Ground. Connect
to ground.
22
YIN
Y Channel Input
3, 5
GND
Ground
44
PbIN
Pb Channel Input
66
PrIN
Pr Channel Input
10
PrOUT
Pr Channel Output
11, 13, 15
VCC
Positive Supply
12
PbOUT
Pb Channel Output
14
YOUT
Y Channel Output
—
1, 7, 8,
9, 16
VEE
Negative Supply
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9501EEE+ | 功能描述:视频 IC 3Ch HDTV Filter RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| MAX9501EEE+T | 功能描述:视频 IC 3Ch HDTV Filter RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| MAX9501ESE | 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube |
| MAX9501ESE+ | 制造商:Maxim Integrated Products 功能描述:ACTV FLTR TRIPLE LOW PASS 6TH ORDR 16SOIC N - Rail/Tube |
| MAX9501ESE+T | 制造商:Maxim Integrated Products 功能描述:ACTV FLTR TRIPLE LOW PASS 6TH ORDR 16SOIC N - Tape and Reel |
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