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參數(shù)資料
| 型號： | AD6122ARSRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | CDMA 3 V Transmitter IF Subsystem with Integrated Voltage Regulator |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO28 |
| 封裝： | SSOP-28 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 264K |
| 代理商： | AD6122ARSRL |
REV. B
AD6122
–
15
–
INPUT INTERFACES
The AD6122 interfaces to CDMA baseband converters provid-
ing either IF or baseband outputs. The baseband input is pro-
vided by direct connection of the baseband converter
’
s baseband
output to the baseband input of the AD6122 (Figure 30). The
IF amplifier
’
s gain control is provided by connection of the
transmit AGC DAC
’
s output on the baseband converter, through a
low-pass filter to the VGAIN pin on the AD6122.
GAIN
CONTROL
SCALE
FACTOR
LOW
DROPOUT
REGULATOR
VCC
TEMPERATURE
COMPENSATION
TXVCC
IFINN
PD1
2
AD6122
PD2
IFINP
TX AGC DAC
CDMA
BASEBAND
IC
EXT REF IN
I OUTPUT
I OUTPUT
VCM REF IN
Q OUTPUT
Q OUTPUT
IFVCC
IFGND
IIPP
IIPN
QIPN
QIPP
MODCMREF
MODOPN
VCC
MODOPP
REFOUT
REFIN
VGAIN
I
Q
TXOPN
TXOPP
IFGND
DVCC
LOIPN
LOIPP
DGND
LDOGND
LDOC
LDOB
LDOE
VCC
Figure 30. Typical Connections to Baseband IC Using I and Q Inputs with SSOP Package
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD612BS | 制造商:POP 功能描述: |
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