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參數(shù)資料
| 型號(hào)： | X9470V24I |
| 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)： | 6/25頁 |
| 文件大?。?/td> | 542K |
| 代理商： | X9470V24I |
PeimnayInomaion
w(n)
(actual) – V
w(n)
(expected))
(7) Relative Linearity is a measure of the error in step size between taps = V
W(n+1)
– [V
w(n)
+ Ml]
(8) 1 Ml = Minimum Increment = R
TOT
/63 or R
TOT
/255.
(9) Typical values are for T
A
= 25°C and nominal supply voltage, VCC = 5V
(10) This parameter is not 100% tested.
6 of 25
REV 11.16 3/20/03
www.xicor.com
Preliminary Information
X9470
D.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.)
Notes:
(1) V
OUT
is a high impedance output intended for light loads only.
(2) Gain at V
OUT
is set to 20 by default.
(3) Value given is for V
OUT
. The V
BIAS
output will depend on the V
BIAS
potentiometer which is initially loaded with a zero value, then
followed by the loading of the final value from E
2
memory.
(4) Gain Error excludes the contribution of the input offset voltage error
(5) Total Error includes the contributions of gain error and input offset voltage error.
T
S
(10)
Settling Time
2
μs
Final value ±1%, R
L
= 10k
,
1nF,
V
BIAS
= 20mV
t
SHDN
PSRR
Time for
SHDN
pin (delay) valid
Power Supply Rejection Ratio
0.1
55
1.0
μs
d
B
45
VCC supply V
CC
= 4.75 to
5.25V
Input Voltage Range
Load Capacitance
Capacitances on Shutdown Pin
Output Impedance
1.5
V
CC
– 0.5
V
nF
pF
C
L
(10)
C
IN
(10)
R
OUT
(10)
1
10
3
at 5MHz, 1nF load
Symbol
I
CC1
(9)
I
CC2
(9)(10)
Parameter
Limits
Typ.
1
5
Units
mA
mA
Test Conditions
CS
= V
CC
– 0.3V, and SCL
@ max. t
CYC, SDA =
V
CC
–
0.3V, SHDN inactive
CS
= V
IL
, and SCL inactive
(no clock)
, SDA =
V
IL
, SHDN
active
V
IN
= VSS to V
CC
Min.
Max.
3
25
V+ Active Current
V
CC
Active Current
I
SB
(9)
Standby Supply Current
(V
CC
, V+)
1.5
mA
I
LI
CS, SDA, SCL, SHDN RH, RL, RW,
INC/DEC VOUT, Input Leakage
CS, SDA, SCL, SHDN, A0, A1, A2
HIGH Voltage
CS, SDA, SCL, SHDN, A0, A1, A2
LOW Voltage
CS, SDA, SCL, SHDN, A0, A1, A2
Capacitance
-10
10
μA
V
IH
(10)
V
CC
x 0.7
V
CC
+ 0.5
V
V
IL
(10)
–0.5
V
CC
x 0.3
V
C
IN
(10)
10
pF
V
CC
= 5V, V
IN
= VSS,
T
A
= 25°C, f = 1MHz
VBIAS OUTPUT VOLTAGE FOLLOWER
Recommended Operating Conditions: (Vcc, V+ = 4.75 to 5.25V; Vsense+, Vsense- = 26V; T
A
= -40°C to +85°C,
unless otherwise noted.)
Symbol
Parameter
Limits
Test Conditions/Notes
Min.
Typ.
Max.
Units
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