參數(shù)資料
型號: X9470
英文描述: RF Power Amplifier (PA) Bias Controller
中文描述: 射頻功率放大器(PA)的偏置控制器
文件頁數(shù): 7/25頁
文件大?。?/td> 542K
代理商: X9470
7 of 25
REV 11.16 3/20/03
www.xicor.com
Preliminary Information
X9470
BIAS ADJUSTMENT CIRCUIT BLOCK
A.C. OPERATING CHARACTERISTICS
Recommended Operating Conditions: (Vcc, V+ = 4.75 to 5.25V; Vsense+, Vsense- = 26V; T
A
= -40°C to +85°C, unless
otherwise noted.)
A.C. TIMING
Note:
(11) MI in the A.C. timing diagram refers to the minimum incremental change in the V
BIAS
output due to a change in the wiper position.
Symbol
t
Cl
t
lD
t
lL
t
lH
t
lC
(10)
t
IW
(10)(11)
t
CYC
t
R
,
t
F
(10)
Parameter
Limits
Typ.
(9)
Units
ns
μ
s
μ
s
μ
s
ns
μ
s
μ
s
ns
Min.
100
Max.
CS
to SCL Setup
Vsense Change to
INC/DEC
Change
SCL LOW Period
SCL HIGH Period
SCL Inactive to
CS
Inactive
SCL to
V
BIAS
Change
SCL Cycle Time
SCL Input Rise and Fall Time
5
1.5
1.5
100
3
3
500
CS
SCL
INC/DEC
V
BIAS
t
CI
t
IL
t
IH
t
CYC
t
ID
t
IW
t
IC
t
F
t
R
10%
90%
90%
(Vsense+ –
Vsense-)
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