UMA1022M NXP Semiconductors, UMA1022M Datasheet - Page 12
UMA1022M
Manufacturer Part Number
UMA1022M
Description
Low Cost Dual Frequency Synthesizer For Radio Telephones
Manufacturer
NXP Semiconductors
Datasheet
1.UMA1022M.pdf
(20 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
UMA1022M/C1
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Part Number:
UMA1022M/C1/S2
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Philips Semiconductors
SERIAL BUS TIMING CHARACTERISTICS
V
Note
1. The minimum pulse width (t
1998 Dec 09
handbook, full pagewidth
Serial programming clock; CLK
t
t
T
Enable programming; E
t
t
t
t
Register serial input data; DATA
t
t
r
f
START
END
W(min)
SU;E
SU;DAT
HD;DAT
DD
cy
Low cost dual frequency synthesizer for
radio telephones
SYMBOL
a) Main divider input frequency
b) Reference divider input frequency
CLK
DATA
= V
E
DDX
t START
= V
t SU;DAT
CCA
LSB
input rise time
input fall time
clock period
delay to rising clock edge
delay from last falling clock edge
minimum inactive pulse width
enable set-up time to next clock edge
input data to clock set-up time
input data to clock hold time
= V
CCB
= 3 V; T
W(min)
t HD;DAT
amb
f
) can be smaller than 1.5 s when the following conditions are fulfilled:
RF
PARAMETER
= 25 C; unless otherwise specified.
--------------- -
t
f
W(min)
xtal
Fig.3 Serial bus timing diagram.
383
--------------- -
t
W(min)
3
T cy
12
t f
MSB
100
100
20
1500
20
20
20
MIN.
t r
(1)
10
10
ADDRESS
TYP.
40
40
Product specification
UMA1022M
MAX.
t END t SU;E
t W(min)
ns
ns
ns
ns
ns
ns
ns
ns
ns
MGE628
UNIT