參數(shù)資料
型號(hào): TSA5515T
廠商: NXP SEMICONDUCTORS
元件分類: XO, clock
英文描述: 1.3 GHz bi-directional I2C-bus controlled synthesizer
中文描述: PLL FREQUENCY SYNTHESIZER, 1300 MHz, PDSO14
封裝: PLASTIC, SO-14
文件頁數(shù): 12/15頁
文件大?。?/td> 117K
代理商: TSA5515T
November 1991
12
Philips Semiconductors
Product specification
1.3 GHz bi-directional I
2
C-bus controlled synthesizer
TSA5515T
FLOCK FLAG DEFINITION (FL)
When the FL flag is 1, the maximum frequency deviation (
f) from stable frequency can be expressed as follows:
f
K
VCO
K
O
I
CP
C1
C2
+
C1
C2
=
where;
FLOCK FLAG APPLICATION
K
VCO
= 16 MHz/V (UHF band)
I
CP
= 220
μ
A
C1 = 180 nF
C2 = 39 nF
f =
±
27.5 kHz.
Table 4
Flock flag settings
K
VCO
I
CP
K
O
C1 and C2
=
=
=
=
oscillator slope (Hz/V)
charge-pump current (A)
4
×
10
6
loop filter capacitors
MIN.
MAX.
UNIT
Time span between actual phase lock and FL-flag setting
Time span between the loop losing lock and FL-flag resetting
1024
0
1152
128
μ
s
μ
s
(
)
(
)
×
(
)
×
×
±
Fig.6 Loop filter
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