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參數(shù)資料
| 型號： | AD6121ARSRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | CDMA 3 V Receiver IF Subsystem with Integrated Voltage Regulator |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, DSO28 |
| 封裝： | SSOP-28 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 258K |
| 代理商： | AD6121ARSRL |
AD6121
–4–
REV. B
PIN FUNCTION DESCRIPTIONS
SSOP
Pin
Number
LPCC
Pin
Number
Pin Label
Description
Function
1
2
3
4
5
6
7
8
9
10
30
31
32
1, 2
3
4
5
6
7
8
9, 25
10
11
CDMA/FM
CDMAIPP
CDMAIPN
IFGND
FMIPP
FMIPN
IFVCC
DGND
LOIPP
LOIPN
NC
DVCC
LDOC
Selects CDMA or FM Input
CDMA “Positive” Input
CDMA “Negative” Input
IF Ground
FM “Positive” Input
FM “Negative” Input
IF VCC
Digital Ground
Local Oscillator “Positive” Input
Local Oscillator “Negative” Input AC-coupled, Differential Local Oscillator Input.
No Connect
Digital VCC
VCC for control logic.
Low Dropout Regulator Pass
Connects to collector of external PNP pass transistor.
Transistor Collector Connection
Low Dropout Regulator Pass
Connects to base of external PNP pass transistor.
Transistor Base Connection
Low Dropout Regulator Pass
Connects to emitter of external PNP pass transistor
Transistor Emitter Connection
and DVCC, IFVCC.
Demodulator Power-Down
Demodulator Power-Down Control Input CMOS-
Control Input
compatible; HIGH = Modulator Off, LOW = Modulator On.
Gain Control Voltage Input
Accepts gain control input voltage from external DAC.
Max Gain = 2.5 V. Min Gain = 0.5 V.
Gain Control Reference Input
Accepts 1.23 V reference input from REFOUT (Pin 17)
or external reference.
Reference Output
Provides 1.23 V reference output to REFIN (Pin 18) and
CDMA baseband IC reference input so that gain control
DAC and AD6121 use same reference.
IF Amplifier Power-Down
IF Amplifier Power-Down Control Input, CMOS com-
Control Input
patible; HIGH = Entire IC Powers Down, LOW = IF
Amplifier On.
Q Output “Negative”
Connects to Q “Negative” Input of baseband IC.
Q Output “Positive”
Connects to Q “Positive” Input of baseband IC.
I Output “Negative”
Connects to I “Negative” Input of baseband IC.
I Output “Positive”
Connects to I “Positive” Input of baseband IC.
Ground
Ground.
Demodulator “Positive” IF Input
Demodulator input from roofing filter.
Demodulator “Negative” IF Input
Demodulator input from roofing filter.
IF Amplifier “Negative” IF Output
IF output to roofing filter.
IF Amplifier “Positive” IF Output
IF output to roofing filter.
CMOS-compatible; HIGH = CDMA, LOW = FM.
AC-coupled, IF input from CDMA SAW filter.
AC-coupled, IF input from CDMA SAW filter.
Ground.
AC-coupled, IF input from FM SAW filter.
AC-coupled, IF input from FM SAW filter.
VCC for IF AGC amplifiers.
Ground.
AC-coupled, Differential Local Oscillator Input.
11
12
13
12
LDOB
14
13
LDOE
15
14
PD2
16
15
VGAIN
17
16
REFIN
18
17
REFOUT
19
18
PD1
20
21
22
23
24
25
26
27
28
19
20
21
22
23, 24
26
27
28
29
QOPN
QOPP
IOPN
IOPP
LDOGND
DEMIPP
DEMIPN
IFOPN
IFOPP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD6121ACP | CDMA 3 V Receiver IF Subsystem with Integrated Voltage Regulator |
| AD6121ARS | CDMA 3 V Receiver IF Subsystem with Integrated Voltage Regulator |
| AD6121 | CDMA 3 V Receiver IF Subsystem with Integrated Voltage Regulator |
| AD6121ACPRL | CDMA 3 V Receiver IF Subsystem with Integrated Voltage Regulator |
| AD6122ARSRL | CDMA 3 V Transmitter IF Subsystem with Integrated Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD6122 | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA 3 V Transmitter IF Subsystem with Integrated Voltage Regulator |
| AD6122ACP | 制造商:Analog Devices 功能描述:COMMUNICATION CDMA 3V TRANSMITTER IF SUBSYSTEM 28SSOP |
| AD6122ACPRL | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA 3 V Transmitter IF Subsystem with Integrated Voltage Regulator |
| AD6122ARS | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA 3 V Transmitter IF Subsystem with Integrated Voltage Regulator |
| AD6122ARSRL | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA 3 V Transmitter IF Subsystem with Integrated Voltage Regulator |
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