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参数资料
| 型号： | LC72137 |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDIP22 |
| 封装： | SDIP-22 |
| 文件页数： | 19/22页 |
| 文件大小： | 348K |
| 代理商： | LC72137 |
No. 5743-6/22
LC72137, 72137M
Continued from preceding page.
Pin No.
Symbol
(MFP pin numbers
Type
Functions
Circuit configuration
are in parentheses.)
6 (5)
7 (6)
8 (7)
14 (13)
9 (8)
10 (9)
17 (16)
18 (17)
19 (18)
10 (9)
BO1
BO2
BO3
BO4
IO1
IO2
PD
AIN
AOUT
NC
Output ports
Input or output
ports
Charge pump
output
LPF amplifier
transistor
connections
IF counter
Dedicated outputs
The output states are determined by the BO1 to BO4
bits in the serial data.
Data: 0 = open, 1= low
A time base signal (8 Hz) can be output from the BO1
pin. (When the serial data TBC bit is set to 1.)
I/O dual-use pins
The direction (input or output) is determined by bits IOC1
and IOC2 in the serial data.
Data: 0 = input port, 1 = output port
When specified for use as input ports:
The state of the input pin is transmitted to the controller
over the DO pin.
Input state: low = 0 data value
high = 1 data value
When specified for use as output ports:
The output states are determined by the IO1 and IO2
bits in the serial data.
Data: 0 = open, 1 = low
These pins function as input pins following a power on
reset.
PLL charge pump output
When the frequency generated by dividing the local
oscillator signal frequency by N is higher than the
reference frequency, a high level is output from the PD
pin. Similarly, when that frequency is lower, a low level is
output. The PD pin goes to the high-impedance state
when the frequencies match.
The n-channel MOS transistor used for the PLL active
low-pass filter.
Accepts an input in the frequency range 0.4 to 12 MHz.
The input signal is directly transmitted to the IF counter.
The result is output starting the MSB of the IF counter
using the DO pin.
Four measurement periods are supported: 4, 8, 16, and
32 ms.
IFIN
1 (–)
22 (–)
NC Pin
No connection
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC72137_11 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer |
| LC72137M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72137MA-AE | 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| LC72140 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers |
| LC72140M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers |
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