UMA1021AM Datasheet, PDF (7/16 Pages) NXP Semiconductors – Low-voltage frequency synthesizer for radio telephones

Philips Semiconductors
Low-voltage frequency synthesizer for
radio telephones
Product specification
UMA1021AM
CHARACTERISTICS
All values refer to the typical test and application diagram of Fig.5; V_DD1 = V_DD2 = 2.7 to 5.5 V; V_CC = 2.7 to 5.5 V;
T_amb = 25 °C; unless otherwise specified. Characteristics for which only a typical value is given are not tested.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supplies; pins 3, 12 and 15
V_DD1, V_DD2
V_CC
digital supply voltage
analog supply voltage for charge
pump
I_DD
total digital supply current of
synthesizer (I_DD1 + I_DD2)
I_CC
analog supply current of charge
pump
I_tot(pd)
total supply current in
Power-down mode (I_DD + I_CC)
RF main divider input; pin 5
f_RF
V_RF(rms)
RF input frequency
input signal level (RMS value)
D/D_m
Z_i
main divider ratio
input impedance (real part)
C_i
input capacitance
Reference divider input; pin 13
f_xtal
crystal reference oscillator input
frequency
V_xtal(rms)
sinusoidal input signal level
(RMS value)
D/D_ref
Z_i
C_i
reference divider ratio
input impedance (real part)
input capacitance
Phase comparator
f_ph(comp)
f_loop(max)
phase comparator frequency
maximum loop comparison
frequency
V_DD1 = V_DD2 = V_DD
2.7
V_CC ≥ V_DD
2.7
V_DD = 5.5 V
−
V_CC = 5.5 V;
−
R_set = 5.6 kΩ
logic levels 0 V or V_DD −
300
AC-coupled; series 50
resistance R_s = 50 Ω
512
f_RF = 1 GHz
−
f_RF = 2 GHz
−
f_RF = 1 GHz
−
f_RF = 2 GHz
−
3
50
8
f_xtal = 13 MHz
−
f_xtal = 13 MHz
−
−
−
−
5.5
V
−
5.5
V
7
9.5
mA
3
3.8
mA
5
50
µA
−
2 200
MHz
−
225
mV
−
131 071
750
−
Ω
130
−
Ω
0.5
−
pF
1.5
−
pF
−
35
MHz
−
500
mV
2 047
10
−
kΩ
1.3
−
pF
200
−
kHz
2000 −
kHz
Charge pump current setting; pin 16
R_set
external resistor
V_set
regulated voltage
connected between 5.6
−
12
kΩ
pin 16 and ground
R_set = 5.6 kΩ
−
1.2
−
V
1998 Nov 19
7