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LMX3160 PDF预览

LMX3160

更新时间: 2024-01-20 04:20:33
品牌 Logo 应用领域
美国国家半导体 - NSC 无线
页数 文件大小 规格书
16页 172K
描述
Single Chip Radio Transceiver

LMX3160 数据手册

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LMX3160 Pin Diagram (Continued)  
Pin No.  
17  
Pin Name  
I/O  
Ð
Description  
V
P
Power supply for charge pump.  
18  
D
o
O
Internal charge pump output. For connection to a loop filter for driving the input of an external  
VCO.  
19  
20  
21  
22  
V
Ð
Power supply input for CMOS section of PLL. Connect to VBAT  
Ground.  
CC  
GND  
Out 0/FL  
I/O Programmable CMOS output. Can be used for FastLockTM output (See Programmable Modes).  
o
Out 1/Rx PD I/O Programmable CMOS output. Can be used for hardwire receiver power down (See Programmable  
Modes).  
23  
Out 2/Tx PD I/O Programmable CMOS output. Can be used for hardwire transmitter power down (See  
Programmable Modes).  
e
e
HIGH for PLL power saving.  
24  
25  
26  
27  
28  
29  
PLL PD  
Clock  
Data  
LE  
I
I
I
I
I
I
PLL PD  
LOW for PLL normal operations. PLL PD  
High impedance CMOS clock input.  
Binary serial data input. Data entered MSB first. High impedance CMOS input.  
Load enable input.  
Oscillator input.  
OSC  
IN  
S Field  
DC compensation circuit enable. While LOW, the DC compensation circuit is enabled, and the  
threshold is updated through the DC compensation loop. While HIGH, the switch is opened, and  
the comparator is held by the external capacitor.  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
RSSI  
OUT  
O
O
I
Voltage output of the received signal strength indicator (RSSI).  
Threshold level to external comparator.  
Input to DC compensation circuit.  
Demodulated output of discriminator.  
Ground.  
Thresh  
DC COMP  
IN  
DISC  
GND  
O
Ð
Ð
I
OUT  
V
CC  
Power supply input to discriminator circuit. Connect to VBAT  
Quadrature input.  
QUAD  
IN  
V
Ð
Ð
O
Ð
Ð
I
Power supply input to limiter output stage. Connect to VBAT  
Ground.  
CC  
GND  
LIM  
Limiter output to the quadrature tank.  
Ground.  
OUT  
GND  
V
CC  
Power supply input for limiter. Connect to VBAT  
IF input to the limiter.  
LIM  
IN  
GND  
GND  
Ð
Ð
O
Ð
I
Ground.  
Ground.  
IF  
IF output to bandpass filter.  
OUT  
CC  
V
Power supply input for IF amplifier. Connect to VBAT  
IF input to IF amplifier.  
IF  
IN  
Rx V  
Ð
Supply voltage to external LNA.  
REG  
3

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