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參數資料
| 型號： | L64733C-48 |
| 廠商： | LSI CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | TQFP-48 |
| 文件頁數： | 3/52頁 |
| 文件大小： | 552K |
| 代理商： | L64733C-48 |
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L64733C/L64734 Tuner and Satellite Receiver Chipset
11
QOUTp, QOUTn
Q Channel Baseband Data
Output
The QOUT differential signals form the quadrature-phase
data provided to the L64734.
Prescaler Signals
The following signals are the prescaler outputs from the L64733C to the
L64734.
PSOUTp
, PSOUTn
Prescaler
Output
When the LOBUF signal is LOW, the PSOUT differential
signals are the L64733C prescaler outputs.
When LOBUF is HIGH, the Local Oscillator (LO) buffer
(50
) feeds the PSOUT differential signals.
The programmable counters on the L64734 are clocked
on the rising edge of the PSOUT signal.
Control Signals
The following signals, some of which are generated by the L64734 IC,
control the mode of operation of the L64733C IC.
AGC1
Automatic Gain Control 1
Input
The AGC1 signal is a high-impedance input from the
L64734 that controls RF AGC circuitry. The AGC1 voltage
has a range of 0.5 V to 4.8 V.
AGC2
Automatic Gain Control 2
Input
The AGC2 signal is a high-impedance input from the
L64734 that controls RF AGC circuitry.
CPG[2:1]
Charge Pump Gain
Input
The CPG[2:1] signals set the charge pump gain
according to the table below.
Charge Pump Current (typ), mA
CPG1
CPG2
FB HIGH
FB LOW
0
0.1
0
1
0.3
1
0
0.6
1
1.8
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| L64734 | 制造商:LSI 制造商全稱:LSI 功能描述:Tuner and Satellite Receiver Chipset |
| L64734C-45 | 制造商:LSI 功能描述: 制造商:LSI Corporation 功能描述: |
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| L64735GM-35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Image Processor |
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