UMA1005T Philips Semiconductors (Acquired by NXP), UMA1005T Datasheet - Page 16

• Manufacturer Part Number: UMA1005T
• Description: Dual Low-power Frequency Synthesizer
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Notes
1. Operational conditions:
2. Limited supply voltage range 4.5 to 5.5 V.
3. The relative output current variation is defined as:
4. The output current matching is measured when both (positive and negative current) sections of the output charge
5. When a serial ‘A’ word is programmed, the main charge pumps on PHP and PHI are in the ‘speed-up mode’ as long
6. Monotonicity is guaranteed with CN = 0 to 255.
7. Typical output current:
November 1994
Fractional compensation PHI; speed-up mode (notes 5, 11 and 14); V
I
Charge pump leakage currents; charge pump not active
I
I
I
SYMBOL
PHI(F)
PHP(LO)
PHI(LO)
PHA(LO)
Dual low-power frequency synthesizer
a) Main and auxiliary divider enabled (EM = EA = 1).
b) NA = 125.
c) NR = 125.
d) NM1 = 60.
e) NM2 = 63.
f) f
g) f
h) Lock condition.
i) Normal mode; note 5
j) I
k) CN = 255.
l) PA = 0.
pumps are on.
as STROBE = HIGH, otherwise the main charge pumps are in the ‘normal mode’.
-------- -
I
I
O
O
i(max)1
i(max)3
RN
=
= I
2
fractional compensation
output current PHI as a
function of FRD
output leakage current PHP normal mode;
output leakage current PHI
output leakage current PHA V
RF
= f
= 60 MHz.
----------------- -
I
I
2
= I
2
i(max)2
–
+
RA
PARAMETER
I
I
1
1
= 25 A.
; with V
= 15 MHz.
I
PHP(N)
1
= 0.7 V; V
=
–
I
RN
2
I
FRD = 1 to 7;
notes 2 and 12
I
note 12
V
note 5
V
note 5
normal mode;
RN
RN
= V
PHP
PHI
PHA
CN
-------- -
= 62.5 A;
= 25 A; FRD = 1 to 7;
29
DD
= 0.7 to V
= 0.7 to V
= 0.7 to V
CONDITIONS
; specification condition: CN = 255.
0.8 V (see Fig.8).
DDA
DDA
DDA
16
0.8 V
0.8 V
0.8 V
5.4
2.15
RN
MIN.
= V
DD
; V
PHP
10
10
10
4.0
1.60
TYP.
=
1
2
V
Preliminary specification
DD
750
100
750
2.6
1.05
UMA1005T
MAX.
nA
nA
nA
UNIT
A
A