TSA5522M PHILIPS [NXP Semiconductors], TSA5522M Datasheet - Page 14

• Manufacturer Part Number: TSA5522M
• Description: 1.4 GHz I2C-bus controlled synthesizer
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Flock flag (FL) definition
When the LOCK output is LOW the maximum frequency
deviation
follows:
where:
In the application:
Table 9 LOCK output / FL flag setting
1996 Jan 23
Time span between actual phase lock and LOCK bit is LOW
(or FL flag = 1)
Time span between the loop losing lock and LOCK bit is
HIGH or (FL flag = 0)
K
I
K
C1, C2 = loop filter capacitors.
1.4 GHz I
CP
K
I
C1 = 180 nF, C2 = 39 nF
CP
f = 31.2 kHz.
vco
O
VCO
= 4
= charge-pump current (A)
= 250 A
= oscillator slope Hz/V
= 16 MHz/V (UHF band)
f
=
10E6
f) from stable frequency can be expressed as
K
------------- -
K
VCO
2
O
C-bus controlled synthesizer
I
DESCRIPTION
CP
---------------------------- -
C1
C1 C2
+
C2
14
handbook, halfpage
RSA = 1; RSB = 1
RSA = 1; RSB = 1
RSB = 0
CONDITION
Fig.7 Loop filter.
C1
1024
2048
1280
0
MIN.
C2
R
MBE331
1152
2304
1440
300
Product specification
MAX.
TSA5522
s
s
s
s
UNIT