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参数资料
| 型号： | ADRF6704ACPZ |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 调制器/解调器 |
| 英文描述： | 2500 MHz - 2900 MHz RF/MICROWAVE I/Q MODULATOR |
| 封装： | 6 X 6 MM, ROHS COMPLIANT, MO-220VJJD-2, LFCSP_VQ, CP-40-1, 40 PIN |
| 文件页数： | 17/18页 |
| 文件大小： | 581K |
| 代理商： | ADRF6704ACPZ |
ADRF6704
Preliminary Technical Data
THEORY OF OPERATION
The ADRF6704 integrates a high performance IQ modulator
with a state of the art fractional-N PLL. The PLL also integrates
a low noise VCO. The programmable SPI port allows the user to
control the fractional-N PLL functions and the modulator
optimization functions as well as allowing for an externally
applied LO or VCO.
The quadrature modulator core within the ADRF670X family is
the next generation of industry leading family of modulators
from Analog Devices. The baseband inputs are converted to
currents and then mixed to RF using high-performance NPN
transistors. The mixer output currents are transformed to a
single-ended RF output using an integrated RF transformer
balun. The high performance active mixer core, coupled with
the low-loss RF transformer balun results in an exceptional
OIP3 and OP1dB, with a very low output noise floor for
excellent dynamic range. The use of a passive transformer balun
rather than an active output stage leads to an improvement in
OIP3 with no sacrifice in noise floor. Over the specified
frequency range the four devices in the ADRF670X typically
provide RF output P1dB of 15dBm, OIP3 of 30dBm, and RF
output noise floor of -158dBm/Hz. Typical image rejection
under these conditions is 40dB with no additional I and Q gain
compensation.
The fractional divide function of the PLL allows the frequency
multiplication value from REFIN to LO Out to be a fractional
value rather than restricted to an integer as in traditional PLLs.
In operation, this multiplication value is INT+(FRAC/MOD)
where INT is the integer value, FRAC is the fractional value and
MOD is the modulus value, all programmable via the SPI port.
In previous frac-N PLL designs, the fractional multiplication
was achieved by periodically changing the fractional value in a
deterministic way. The down side of this was often spurious
components close to the fundamental signal. In the ADRF670x
family, a sigma-delta modulator is used to distribute the
fractional value randomly, thus significantly reducing the
spurious content due to the fractional function.
Rev. PrE | Page 8 of 18
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADRF6704ACPZ-R7 | 功能描述:IC MOD QUAD FRAC N PLL 40LFCSP RoHS:是 类别:RF/IF 和 RFID >> RF 调制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:调制器 LO 频率:700MHz ~ 2.3GHz RF 频率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 输出功率:-1dBm 电流 - 电源:46mA 电源电压:2.7 V ~ 3.6 V 测试频率:1.75GHz 封装/外壳:28-WFQFN 裸露焊盘 包装:带卷 (TR) |
| ADRF6704-EVALZ | 制造商:Analog Devices 功能描述:EVAL QUAD MODULATOR ADRF6704 制造商:Analog Devices 功能描述:ADRF6704, QUAD MODULATOR, EVAL BOARD |
| ADRF6720-27ACPZ-R7 | 功能描述:RF Modulator IC 400MHz ~ 3GHz 40-WFQFN Exposed Pad, CSP 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 功能:调制器 LO 频率:356MHz ~ 2.855GHz RF 频率:400MHz ~ 3GHz P1dB:11dBm 本底噪声:-162dBm/Hz 输出功率:5dBm 电流 - 电源:425mA 电压 - 电源:3.3V 测试频率:2.14GHz 封装/外壳:40-WFQFN 裸露焊盘，CSP 标准包装:1 |
| ADRF6720-27-EVALZ | 功能描述:EVAL BOARD FOR ADRF6720-27 制造商:analog devices inc. 系列:- 零件状态:有效 类型:调制器 频率:400MHz ~ 3GHz 配套使用产品/相关产品:ADRF6720-27 所含物品:板 标准包装:1 |
| ADRF6720ACPZ-R7 | 功能描述:WIDEBAND INTEG MOD WITH PLL AND 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:在售 功能:调制器 LO 频率:356MHz ~ 2.855GHz P1dB:12.2dBm 本底噪声:-158dBm/Hz 输出功率:5dBm 电流 - 电源:425mA 电压 - 电源:3.3V 测试频率:2GHz 封装/外壳:40-WFQFN 裸露焊盘 标准包装:1 |
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