|
|
零件编号 | U4459B | ||
描述 | IF Amplifier | ||
制造商 | TEMIC Semiconductors | ||
LOGO | |||
1 Page
www.DataSheet4U.com
IF Amplifier for Cable DVB Processing
U4459B
Description
The U4459B is an integrated bipolar circuit suitable for
the IF processing in cable-DVB receiver (DVB = Digital
Video Broadcasting) and cable network application.
The circuit contains a wideband IF amplifier, mixer stage,
gain control for the IF amplifier and a tuner-AGC
(Automatic Gain Control) with adjustable take over point
for an additional external preamplifier (tuner).
Features
D Input frequency range 30 to 50 MHz (1st IF)
D Wideband IF amplifier with high linearity
D Gain control of the IF amplifier by external
dc voltage
D Mixer stage with local oscillator input
(symmetrical or unsymmetrical)
D High output level of mixed signal (2nd IF)
(up to 2.4 V, peak-to-peak value)
D Tuner-AGC with adjustable take over point for a
preamplifier
D Supply voltage range 6.8 to 13.5 V
Package: DIP16
IF1 in
IF1 in
1
16
IF amp
LO in LO in
89
Mixer
IF gain
control
95 9636
6
IF2 out
3
ITun
TELEFUNKEN Semiconductors
Rev. A1, 15-Jul-96
Bandgap
14
VS
2 5 13
4,15
VTun VGain
BG GND
Figure 1. Block diagram
1 (7)
|
|||
页数 | 7 页 | ||
下载 | [ U4459B.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
U4459B | IF Amplifier | TEMIC Semiconductors |
零件编号 | 描述 | 制造商 |
STK15C88 | 256-Kbit (32 K x 8) PowerStore nvSRAM | Cypress Semiconductor |
NJM4556 | DUAL HIGH CURRENT OPERATIONAL AMPLIFIER | New Japan Radio |
EL1118-G | 5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLER | Everlight |
DataSheet8.cn | 2020 | 联系我们 | 搜索 | Simemap |