UMA1020AM Datasheet, PDF (10/20 Pages) NXP Semiconductors – Low-voltage dual frequency synthesizer for radio telephones

Philips Semiconductors
Low-voltage dual frequency
synthesizer for radio telephones
Product specification
UMA1020AM
SYMBOL
PARAMETER
CONDITIONS
MIN.
Crystal reference dividers input; pin 8
f_XTAL
V_8(rms)
Z_I
C_I
R_pr
R_ar
crystal reference input frequency
sinusoidal input signal level
(RMS value)
input impedance (real part)
typical pin input capacitance
principal reference divider ratio
auxiliary reference divider ratio
3
5 MHz < f_XTAL < 40 MHz 50
3 MHz < f_XTAL < 40 MHz 100
f_XTAL = 30 MHz
−
indicative, not tested −
8
8
Charge pump current setting resistor input; pin 14
R_ext
external resistor from pin 14 to
12
ground
V₁₄
regulated voltage at pin 14
R_ext = 12 kΩ
−
Charge pump outputs; pins 17, 3 and 2; R_ext = 12 kΩ
I_Ocp
charge pump output current error
−25
I_match
sink-to-source current matching V_cp in range
−
I_Lcp
charge pump off leakage current V_cp = ¹â„₂V_CC
−5
V_cp
charge pump voltage compliance
0.4
Interface logic input signal levels; pins 13, 12, 11 and 1
V_IH
HIGH level input voltage
V_IL
LOW level input voltage
I_bias
input bias current
C_I
input capacitance
logic 1 or logic 0
indicative, not tested
0.7V_DD
−0.3
−5
−
Lock detect output signal; pin 20 open-drain output
V_OL
LOW level output voltage
I_sink = 0.4 mA
−
TYP.
−
−
−
2
2
−
−
−
1.15
−
±5
±1
−
−
−
−
2
−
MAX. UNIT
40
500
500
−
−
2 047
2 047
MHz
mV
mV
kΩ
pF
60
kΩ
−
V
+25
%
−
%
+5
nA
V_CC − 0.4 V
V_DD + 0.3 V
0.3V_DD V
+5
µA
−
pF
0.4
V
1995 Jul 06
10