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LMX2541SQ3030E Datasheet(PDF) 4 Page - Texas Instruments

Part # LMX2541SQ3030E
Description  Ultra-Low Noise PLLatinum Frequency Synthesizer
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LMX2541SQ3030E Datasheet(HTML) 4 Page - Texas Instruments

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GND
L2
0
GND
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
VregRFout
VccRFout
VregVCO
VrefVCO
OSCin
Ftest/LD
VccPLL2
OSCin*
VccOSCin
RFoutEN
VccFRAC
VregFRAC
GND
L1
Lmid
VccVCO
LMX2541
SNOSB31J – JULY 2009 – REVISED DECEMBER 2014
www.ti.com
6 Pin Configuration and Functions
NJK Package
36-Pin WQFN
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
NAME
NO.
Bypass
30
Bypass
Put a cap to the VccBias pin.
Chip Enable.
CE
11
CMOS
The device needs to be programmed for this pin to properly power down the device.
MICROWIRE clock input. High impedance CMOS input.
CLK
33
High-Z Input
This pin is used for the digital FSK modulation feature.
CPout
16
Output
Charge pump output.
DATA
32
High-Z Input
MICROWIRE serial data input. High impedance CMOS input.
Optional input for use with an external VCO.
ExtVCOin
12
RF Input
This pin should be AC coupled if used or left open if not used.
FLout
17
Output
Fastlock output.
Software controllable multiplexed CMOS output.
Ftest/LD
20
Output
Can be used to monitor PLL lock condition.
GND
0
GND
The DAP pad must be grounded.
GND
1
GND
GND
10
GND
GND
27
GND
L1
4
NC
Do not connect this pin.
L2
6
NC
Do not connect this pin.
LE
34
High-Z Input
MICROWIRE Latch Enable input. High impedance CMOS input.
Lmid
5
NC
Do not connect this pin.
NC
35
NC
No connect.
Oscillator input signal. If not being used with an external crystal, this input should be AC
OSCin
21
High-Z Input
coupled.
4
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Copyright © 2009–2014, Texas Instruments Incorporated
Product Folder Links: LMX2541


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