參數(shù)資料
型號(hào)： SA8025ADK
廠商： NXP SEMICONDUCTORS
元件分類： XO, clock
英文描述： Low-voltage 1.8GHz fractional-N synthesizer
中文描述： PLL FREQUENCY SYNTHESIZER, 1800 MHz, PDSO20
文件頁數(shù)： 5/23頁
文件大?。?/td> 456K
代理商： SA8025ADK
Philips Semiconductors
Product specification
SA8025A
1.8GHz low-voltage Fractional-N synthesizer
1996 Oct 15
5
DC ELECTRICAL CHARACTERISTICS
V
DD
= V
DDA
= V
CCP
= 3V; T
A
= 25
°
C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
TYP
UNITS
MIN
2.7
MAX
5.5
500
V
SUPPLY
I
STANDBY
Operational supply currents: I = I
DD
+ I
CCP
+ I
DDA
; I
RN
= 25
μ
A, I
RA
= 25
μ
A, (see Note 5)
I
AUX
Operational supply currents
I
MAIN
Operational supply currents
I
TOTAL
Operational supply currents
Digital inputs CLK, DATA, STROBE
V
IH
High level input voltage range
V
IL
Low level input voltage range
Digital outputs LOCK
V
OL
Output voltage LOW
V
OH
Output voltage HIGH
Charge pumps: V
DDA
= 3V / I
RX
= 25
μ
A or V
DDA
= 5V / I
RX
= 62.5
μ
A, V
PHX
in range, unless otherwise specified.
sistor
Recommended operating conditions
Total standby supply currents
V
CCP
= V
DD
, V
DDA
≥
V
DD
EM = EA = 0, I
RN
= I
RF
= I
RA
= 0
V
μ
A
50
EM = 0, EA = 1
EM = 1, EA = 0
EM = EA = 1
3.5
11.0
13.5
mA
mA
mA
0.7xV
DD
0
V
DD
V
V
0.3xV
DD
I
O
= 2mA
I
O
= –2mA
0.4
V
V
V
DD
–0.4
|I
RX
|
2.7V < V
DDA
< 5.5V
4.5V < V
DDA
< 5.5V
25
62.5
μ
A
Setting current range for any setting re-
V
PHOUT
Charge pump PHA
Output voltage range
0.7
V
DDA
–0.8
V
|I
PHA
|
Output current PHA
I
RN
= –62.5
μ
A; V
PHP
= V
DDA
/2
13
I
RN
= –25
μ
A; V
PHP
= V
DDA
/2
400
160
500
200
600
240
μ
A
I
PHP_A
| I
PHP_A
|
Relative output current variation PHA
I
RA
= –62.5
μ
A
2, 13
2
6
%
I
PHA_M
Output current matching PHA pump
V
DDA
= 3V, I
RA
= 25
μ
A
V
DDA
= 5V, I
RA
= 62.5
μ
A
±
50
±
65
μ
A
Charge pump PHP, normal mode
NO TAG, 4, 6
V
RF
= V
DDA
|I
PHP_N
|
Output current PHP
I
RN
= –62.5
μ
A; V
PHP
= V
DDA
/2
13
I
RN
= –25
μ
A; V
PHP
= V
DDA
/2
440
175
550
220
660
265
μ
A
I
PHP_N
I
PHP_N
Relative output current variation PHP
I
RN
= –62.5
μ
A
2, 13
2
6
%
I
PHP_N_M
Output current matching PHP
normal mode
Charge pump PHP, speed-up mode
NO TAG, 4, 7
V
RF
= V
DDA
V
DDA
= 3V, I
RA
= 25
μ
A
V
DDA
= 5V, I
RA
= 62.5
μ
A
±
50
±
65
μ
A
|I
PHP_S
|
Output current PHP
I
RN
= –62.5
μ
A; V
PHP
= V
DDA
/2
13
I
RN
= –25
μ
A; V
PHP
= V
DDA
/2
2.20
0.85
2.75
1.1
3.30
1.35
mA
I
PHP_S
I
PHP_S
Relative output current variation PHP
I
RN
= –62.5
μ
A
2, 13
2
6
%
I
PHP_S_M
Output current matching PHP
speed-up mode
Charge pump PHI, speed-up mode
NO TAG, 4, 8
V
RF
= V
DDA
V
DDA
= 3V, I
RA
= 25
μ
A
V
DDA
= 5V, I
RA
= 62.5
μ
A
±
250
±
300
μ
A
|I
PHI
|
Output current PHI
I
RN
= –62.5
μ
A; V
PHI
= V
DDA
/2
13
I
RN
= –25
μ
A; V
PHI
= V
DDA
/2
4.4
1.75
5.5
2.2
6.6
2.65
mA
I
PHI
I
PHI
Relative output current variation PHI
I
RN
= –62.5
μ
A
2, 13
2
8
%
I
PHI_M
Output current matching PHI pump
V
DDA
= 3V, I
RA
= 25
μ
A
V
DDA
= 5V, I
RA
= 62.5
μ
A
±
500
±
600
μ
A
Fractional compensation PHP, normal mode
NO TAG, 9
V
RN
= V
DDA
, V
PHP
= V
DDA
/2
PHP vs F
RD3
I
PHP_F_N
I
RF
= –62.5
μ
A;F
RD
= 1 to 7
13
I
RF
= –25
μ
A;F
RD
= 1 to 7
–625
–300
–400
–180
–250
–50
nA
Fractional compensation output current
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