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參數(shù)資料
| 型號： | MRFIC1854A |
| 廠商： | Motorola, Inc. |
| 英文描述： | 1.9GHz CDMA Upmixer/Exciter Amplifier(1.9GHz CDMA上混頻器/放大器) |
| 中文描述： | 1.9GHz的CDMA的混頻器/激勵器放大器（1.9GHz的CDMA的上混頻器/放大器） |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 125K |
| 代理商： | MRFIC1854A |
MRFIC1854A
3
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
PIN FUNCTION DESCRIPTION
Pin
Function
Description
Voltage On (V)
Voltage Off (V)
1
IF In+
Mixer IF input pin. Input impedance is 500
.
–33 dBm (Typ)
2
Enable 1
(See Table 1)
Enable pin. A logic
″
High
″
(>2.4 V) enables entire chip and
″
Low
″
(<0.4 V)
disables chip.
2.4 to 3.6
0 to 0.4
3
LO In
Mixer LO input pin.
–13 dBm (Typ)
4
Bias Select
Bias select pin. Logic
″
Low
″
(<0.4 V) selects higher current
bias for increased linearity and output power.
″
High
″
(>2.4 V)
selects lower bias for reduced current consumption.
5
IF AGC Control
Voltage
IF AGC gain control pin. A 30 dB dynamic range can be
acheived by adjusting voltage from 0.1 V (low gain) to 1.7 V
(high gain).
0.1 to 1.7
6
VCC3
Gnd
Supply Voltage.
2.7 to 3.6
7
Ground connection.
–
8
VCC1
Supply Voltage
2.7 to 3.6
9
RF AGC Control
Voltage
RF AGC control pin. A 30 dB dynamic range can be
acheived by adjusting voltage from 0.1 V (low gain) to 1.7 V
(high gain).
0.1 to 1.7
10
Exciter Out
RF exciter amplifier output pin.
–
11
Enable 2
(See Table 1)
Tx Enable pin. A logic
″
High
″
(>2.4 V) enables Tx path and
″
Low
″
(<0.4 V)
disables Tx path except LO Buffer
.
2.4 to 3.6
0 to 0.4
12
VCC2
Exciter In
Supply Voltage
2.7 to 3.6
13
RF exciter amplifier input pin.
–
14
Gnd
Ground connection.
–
15
Gnd
Ground connection.
–
16
Gnd
Ground connection.
–
17
RF Out–
Mixer RF output pin.
18
RF Out+
Mixer RF output pin.
19
VCC4
IF In–
Supply Voltage
2.7 to 3.6
20
Mixer IF input pin. Input impedance is 500
.
–33 dBm (Typ)
Table 1. Enable Truth Table
Enable 1
Enable 2
Mode
0
0
Disabled
0
1
Not Applicable
1
0
Standby Mode: Disables
mixer/exciter, except LO buffer
1
1
Tx Enabled
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