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RFMD2081TR13 Datasheet(PDF) 4 Page - RF Micro Devices

Part # RFMD2081TR13
Description  45MHz TO 2700MHz IQ MODULATOR WITH SYNTHESIZER/VCO
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Manufacturer  RFMD [RF Micro Devices]
Direct Link  http://www.rfmd.com
Logo RFMD - RF Micro Devices

RFMD2081TR13 Datasheet(HTML) 4 Page - RF Micro Devices

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RFMD2081
DS140110
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Notes:
1.
An RC low pass filter may be used on this line to reduce digital noise.
2.
If the device is under software control this input can be configured as a general purpose output (GPO).
3.
Connect a 51K
 resistor from this pin to ground. This pin is sensitive to low frequency noise injection.
4.
DC bias voltage and modulation should be applied to this pin.
5.
This pin must be connected to ANA_VDD2 using an RF choke or center tapped transformer (see application schematic).
Pin Names and Descriptions
Pin
Name
Description
1ENBL/GPO5
Device Enable pin (see note 1 and 2).
2
EXT_LO
External local oscillator input. Use AC coupling capacitor.
3
EXT_LO_DEC
Decoupling pin for external local oscillator. Use AC coupling capacitor.
4REXT
External bandgap bias resistor (see note 3).
5
ANA_VDD1
Analog supply. Use good RF decoupling.
6LFILT1
Phase detector output. Low-frequency noise-sensitive node.
7LFILT2
Loop filter op-amp output. Low-frequency noise-sensitive node.
8LFILT3
VCO control input. Low-frequency noise-sensitive node.
9
MODE/GPO6
Mode select pin (see notes 1 and 2).
10
REF_IN
Reference input. Use AC coupling capacitor.
11
NC
12
TM
Connect to ground.
13
RF_OUT_N
Differential output (see note 5).
14
RF_OUT_P
Differential output (see note 5).
15
GPO1/ADD1
General purpose output / MultiSlice address bit.
16
GPO2/ADD2
General purpose output / MultiSlice address bit.
17
DIG_VDD
Digital supply. Should be decoupled as close to the pin as possible.
18
MOD_Q_N
Modulator Q differential input (see note 4).
19
MOD_Q_P
Modulator Q differential input (see note 4).
20
NC
21
NC
22
MOD_I_N
Modulator I differential input (see note 4).
23
MOD_I_P
Modulator I differential input (see note 4).
24
ANA_VDD2
Analog supply. Use good RF decoupling.
25
GPO3
General purpose output
26
GPO4/LD/DO
General purpose output / Lock detect output / serial data out.
27
NC
28
NC
29
RESETX
Chip reset (active low). Connect to DIG_VDD if asynchronous reset is not required.
30
ENX
Serial interface select (active low) (See note 1).
31
SCLK
Serial interface clock (See note 1).
32
SDATA
Serial interface data (See note 1).
Exposed Paddle
Ground reference, should be connected to PCB ground through a low impedance path.


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