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參數(shù)資料
| 型號： | HPMX-7201 |
| 英文描述： | Upconverter(上變頻器) |
| 中文描述： | 變頻器（上變頻器） |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 163K |
| 代理商： | HPMX-7201 |
5
HPMX-7201 Pin Description Table
No.
Name
Description
Functionality
1
ampsMixOutM
AMPS mixer output
Open collector output of AMPS upconverter, connection to
Vcc is required. If a single ended output is required from
ampsMixOutM, then ampsMixOutP needs to be biased to Vcc
and RF terminated.
2
ampsMixOutP
AMPS mixer output
Open collector output of AMPS upconverter, connection to
Vcc is required. If a single ended output is required from
ampsMixOutP, then ampsMixOutM needs to be biased to Vcc
and RF terminated.
3
gnd
Ground
4
cdmaDrvIn
CDMA Amplifier
input
RF input, for CDMA driver. A DC bias is present on this pin so
a DC blocking capacitor is required.
5
gnd
Ground
6
gnd
Ground
7
cdmaMixOutM
CDMA mixer output Open collector output of CDMA upconverter, connection to
Vcc is required. If single ended output is required from
cdmaMixOutM, cdmaMixOutP needs to be biased to Vcc and
RF terminated.
8
cdmaMixOutP
CDMA mixer output Open collector output of CDMA upconverter, connection to
Vcc is required. If single ended output is required from
cdmaMixOutP, cdmaMixOutM needs to be biased to Vcc and
RF terminated.
IF differential input with nominal input impedance of 360
differential. If a single ended 50
source is used on the IF
port, Figure 32 illustrates an example circuit for testing.
9
ifInP
IF differential input
10
ifInM
IF differential input
IF differential input. See ifInP (Pin 9).
11
gnd
Ground
12
Vcc
Regulated DC
Voltage connection
Regulated Vcc connection to IC mixer circuits, separated from
amplifier supply voltage to avoid non-linear mixer effects due
to supply coupling.
13
LoInP
LO input Positive
side
Differential LO input with high input impedance. This pin
requires external AC coupling. If a single ended 50
source is
used, a 56
resistor should be connected directly between
LoInP and LoInM, and LoInM RF bypassed to ground. The LO
signal should be AC coupled into LoInP.
14
LoInM
LO input Negative
side
Differential LO input, see LoInP (pin 13).
15
RfTxAgc
PCS Tx VGA gain
control voltage
DC input, controls CDMA amplifier gain and bias current see
Typical Performance graphs for more information. This pin
appears as a 100k
resistance to ground. If this pin is
connected to a Pulse Density Modulated signal (PDM) an
external discrete filter is needed to generate the gain control
voltage input.
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