UMA1020M 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
UMA1020M
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Crystal reference dividers input; pin 8
f_XTAL
V_8(rms)
Z_I
C_I
R_pr
R_ar
input frequency range from crystal
sinusoidal input signal level
(RMS value)
input impedance (real part)
typical pin input capacitance
V_6(rms) < 224 mV
V_6(rms) > 224 mV
f_XTAL = 30 MHz
indicative, not tested
principal reference division ratio
auxiliary reference division ratio
Charge pump current setting resistor input; pin 14
R_ext
external resistor from pin 14 to
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
I_match
I_Lcp
V_cp
charge pump output current error
sink-to-source current matching
charge pump off leakage current
charge pump voltage compliance
V_cp in range
V_cp = ¹â„₂V_CC
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
DAC output signal levels; pin 10, R_ext = 12 to 24 kΩ
I_DAC
V₁₀
I_10min
I_monot
DAC full scale output current
output voltage compliance
minimum DAC current
worst case monotonicity test:
∆I × -2----_×-1---2-I--_S-8--_E----_T-
all codes
00 code
note 1
5
−
50
−
100
−
−
2
−
2
8
−
8
−
40
500
500
−
−
2 047
2 047
MHz
mV
mV
kΩ
pF
12
−
60
kΩ
−
1.15
−
V
−25
−
−
±5
−5
±1
0.4
−
0.7V_DD −
−0.3
−
−5
−
−
2
+25
%
−
%
+5
nA
V_CC − 0.4 V
V_DD + 0.3 V
0.3V_DD V
+5
µA
−
pF
1.5 × I_SET 2 × I_SET
0
−
−
2
0.1
−
2.5 × I_SET mA
V_DD − 0.4 V
5
µA
1.9
Lock detect output signal; pin 20 open-drain output
V_OL
LOW level output voltage
I_sink = 0.4 mA
−
−
0.4
V
Note
1. ∆I is the change in DAC output current when making the code transitions: 3FH/40H or 1FH/20H.
1995 Jun 15
10