參數(shù)資料
型號(hào): AN8538
廠(chǎng)商: Panasonic Corporation
英文描述: Single PLL IC for cellular phone
中文描述: 單PLL集成電路蜂窩電話(huà)
文件頁(yè)數(shù): 5/5頁(yè)
文件大?。?/td> 50K
代理商: AN8538
ICs for Mobile Communication
AN8538SH
5
I
Application Notes (continued)
1. Input level characteristics (continued)
2) REF input level characteristics
2. Characteristics specification
1) IF select specification
SELECT pin control enables you to switch IF as below:
SELECT
=
low
f
OUT
=
260.76 MHz, f
R
=
60 kHz (P
=
16, N
=
271, A
=
10, R
=
328)
SELECT
=
high
f
OUT
=
260.76 MHz, f
R
=
60 kHz (P
=
16, N
=
271, A
=
10, R
=
330)
2) Unlock detection and LD output specification
LD output is high in a lock mode and low in an unlock mode. Lock signal is outputted in a power save mode.
SELECT
=
high:Detection time is 16
μ
s. About detection accuracy, when a dividing output shifts
by
±
(51
×
3) ns for f
REF
=
60 kHz, it generates an unlock output.
SELECT
=
low :Detection time is 16
μ
s. About detection accuracy, when a dividing output shifts
by
±
(51
×
3) ns for f
REF
=
60 kHz, it generates an unlock output.
3) Power save control specification
When power save control pin (PS) is high, it is set to an operating mode. When it is low, it is set to power save mode.
4) Analog SW control specification
CPSUB is controlled by SW pin.
SW
=
low : CPSUB open
SW
=
high: CPSUB operation
5) Other specification
Set CMOS input pins, such as PS pin, SW pin, SELECT pin, etc., normally to V
CC
or GND.
Input frequency (MHz)
I
30
20
10
0
10
20
0
5
10
15
20
25
30
T
a
=
85
°
C
T
a
=
30
°
C, 25
°
C, 85
°
C
T
a
=
25
°
C
V
CC
=
2.55 V to 3.3V
T
a
=
30
°
C
Upper limit
Lower limit
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