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參數資料
| 型號： | AD8345 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 250 MHz.1000 MHz Quadrature Modulator |
| 中文描述： | 250 MHz.1000兆赫正交調制器 |
| 文件頁數： | 4/16頁 |
| 文件大小： | 372K |
| 代理商： | AD8345 |
REV. 0
AD8345
–4–
PIN FUNCTION DESCRIPTIONS
Equivalent
Circuit
Pin No.
Mnemonic
Function
1, 2
IBBP, IBBN
I Channel Baseband Differential Input Pins. These high impedance inputs should
be dc biased to approximately 0.7 V. Nominal characterized ac swing is 0.6 V p-p
on each pin (0.4 V to 1 V). This gives a differential drive of 1.2 V p-p. Inputs are
not self-biasing so external biasing circuitry must be used in ac-coupled applications.
Ground Pin for Input V-to-I Converters and Mixer Core.
Ground Pin for the LO Phase-Splitter and LO Buffers.
Differential LO Drive Pins. Internal dc bias (approximately 1.8 V @ V
S
= 5 V)
is supplied. Pins must be ac-coupled. Single-ended or differential drive is permissible.
Power Supply Pin for the Bias Cell and LO Buffers. This pin should be decoupled
using local 1000 pF and 0.01
μ
F capacitors.
Enable Pin. A high level enables the device; a low level puts the device in sleep mode. Circuit C
Ground Pin for the Output Stage of Output Amplifier.
50
DC-Coupled RF Output. Pin should be ac-coupled.
Power supply pin for baseband input voltage to current converters and mixer core.
This pin should be decoupled using local 1000 pF and 0.01
μ
F capacitors.
Q Channel Baseband Differential Input Pins. Inputs should be dc biased to
approximately 0.7 V. Nominal characterized ac swing is 0.6 V p-p on each pin
(0.4 V to 1 V). This gives a differential drive level of 1.2 V p-p. Inputs are not
self-biasing so external biasing circuitry must be used in ac-coupled applications.
Circuit A
3, 9, 13, 14
4
5, 6
COM3
COM1
LOIN, LOIP
Circuit B
7
VPS1
8
10
11
12
ENBL
COM2
VOUT
VPS2
Circuit D
15, 16
QBBN, QBBP
Circuit A
EQUIVALENT CIRCUITS
INPUT
CURRENT
MIRROR
TO MIXER
CORE
BUFFER
VPS2
Circuit A
PHASE
SPLITTER
CONTINUES
LOIN
VPS1
LOIP
Circuit B
ENBL
100k
VPS2
100k
100k
TO BIAS FOR
STARTUP/
SHUTDOWN
Circuit C
40
40
VPS2
VOUT
Circuit D
Figure 1. Equivalent Circuits
相關PDF資料 |
PDF描述 |
|---|---|
| AD8345-EVAL | 250 MHz.1000 MHz Quadrature Modulator |
| AD8345ARE | 250 MHz.1000 MHz Quadrature Modulator |
| AD8346ARU-REEL | 0.8 GHz-2.5 GHz Quadrature Modulator |
| AD8346 | 0.8 GHz-2.5 GHz Quadrature Modulator |
| AD8346-EVAL | 0.8 GHz-2.5 GHz Quadrature Modulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8345ARE | 功能描述:IC QUADRATURE MOD 250MHZ 16TSSOP RoHS:否 類別:RF/IF 和 RFID >> RF 調制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AD8345ARE-REEL | 制造商:Analog Devices 功能描述:Quadrature Mod 80MHz 16-Pin TSSOP EP T/R |
| AD8345ARE-REEL7 | 功能描述:IC QUADRATURE MOD 250MHZ 16TSSOP RoHS:否 類別:RF/IF 和 RFID >> RF 調制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AD8345AREZ | 功能描述:IC QUADRATURE MOD 250MHZ 16TSSOP RoHS:是 類別:RF/IF 和 RFID >> RF 調制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AD8345AREZ | 制造商:Analog Devices 功能描述:IC QUAD MODULATOR 140MHZ-1GHZ 16-TSSO 制造商:Analog Devices 功能描述:IC, QUAD MODULATOR, 140MHZ-1GHZ, 16-TSSO |
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