TRF2050 Datasheet, PDF (3/34 Pages) Texas Instruments – LOW-VOLTAGE 1.2-GHz FRACTIONAL-N/INTEGER-N SYNTHESIZER

TRF2050
LOW-VOLTAGE 1.2-GHz FRACTIONAL-N/INTEGER-N SYNTHESIZER
SLWS030D– JUNE 1996 – REVISED OCTOBER 1998
Terminal Functions
TERMINAL
NAME NO.
ÁÁÁÁÁÁÁ _AUXIN
10
ÁÁÁÁÁÁÁ _CLOCK
1
ÁÁÁÁÁÁÁ _DATA
2
ÁÁÁÁÁÁÁ _LOCK/
18
TEST
ÁÁÁÁÁÁÁ _PHA
11
ÁÁÁÁÁÁÁ _PHI
13
ÁÁÁÁÁÁÁ _PHP
14
ÁÁÁÁÁÁÁ _RFIN
5
ÁÁÁÁÁÁÁ _RFIN
6
ÁÁÁÁÁÁÁ _REFIN
8
ÁÁÁÁÁÁÁ _RA
9
ÁÁÁÁÁÁÁ RN
16
RF
17
ÁÁÁÁÁÁÁ _{STROBE 3}
ÁÁÁÁÁÁÁ _{TSETUP 19}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _VCCP
7
ÁÁÁÁÁÁÁ VDD
20
ÁÁÁÁÁÁÁ VDDA
15
ÁÁÁÁÁÁÁ ^VSS
4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ^VSSA
12
I/O
I Auxiliary channel RF input
I Serial interface clock signal
I Serial interface data signal
O Lock detector/test mode output
DESCRIPTION
O Auxiliary charge pump output
O Integral charge pump output
O Proportional charge pump output
I Prescaler positive RF input
I Prescaler negative RF input
I Reference frequency input signal
I Resistor to VSSA sets auxiliary charge pump reference current
I Resistor to VSSA sets proportional and integral charge pump reference current
I Resistor to VSSA sets compensation charge pump reference current
I Serial interface strobe signal
I Test setup for pin 18. For lock detect output, pin 19 connects to VCC through a pullup resistor; for test mode output,
pin 19 terminates to ground.
Prescaler positive supply voltage
Digital supply voltage
Analog supply voltage
Digital ground
Analog ground
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Supply voltage range, V_CCP, V_DD, V_DDA (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.6 V to 5.6 V
Input voltage range, logic signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.6 V to 5.6 V
Operating ambient temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 85°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: Voltage values are with respect to VSSA.
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