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参数资料
| 型号： | AD8345 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | 250 MHz.1000 MHz Quadrature Modulator |
| 中文描述： | 250 MHz.1000兆赫正交调制器 |
| 文件页数： | 14/16页 |
| 文件大小： | 372K |
| 代理商： | AD8345 |
REV. 0
AD8345
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CDMA IS95
For measuring ACPR, the I and Q input signals used were
generated with Pilot (Walsh Code 00), Sync (WC 32), Paging
(WC 01), and 6 Traffic (WC 08, 09, 10, 11, 12, 13) channels
active. Figure 14 shows the typical output spectrum for this
configuration.
For performing EVM, Rho, phase, and amplitude balance mea-
surements, the I and Q input signals used were generated with
only the Pilot Channel (Walsh Code 00) active.
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100
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110
A
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CENTER = 880MHz
Figure 14. Typical IS95 Output Spectrum
SPAN = 7.5MHz
CH PWR =
–
12.41dBm
ACP UP =
–
72.8dB
ACP LOW =
–
72.8dB
WCDMA 3GPP
For evaluating the AD8345 for WCDMA, the 3GPP standard
was used with a Chip Rate of 3.84 MHz. The plot in Figure 15
is an ACPR plot of the AD8345 using “Test Model 1” from the
3GPP specification with 64 channels active.
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30
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10
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100
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110
A
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CENTER = 380MHz
SPAN = 14.7MHz
CH PWR =
–
10.95dBm
ACP UP =
–
52.51dB
ACP LOW =
–
52.41dB
Figure 15. Typical AD8345 WCDMA 3GPP Output Spectrum
GSM
For comparing the AD8345 output to the GSM transmit mask I
and Q signals were generated using MSK modulation, GSM
differential coding, a Gaussian filter and a symbol rate of
270.833 kHz. The transmit mask was manually generated on
the FSIQ using the GSM BTS specification for reference. The
plot in Figure 16 shows that the AD8345 meets the GSM trans-
mit mask requirements.
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100
0
A
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CENTER = 900MHz
SPAN = 1MHz
Figure 16. Typical AD8345 GSM Output Spectrum
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8345ARE | 功能描述:IC QUADRATURE MOD 250MHZ 16TSSOP RoHS:否 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) |
| 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 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) |
| AD8345AREZ | 功能描述:IC QUADRATURE MOD 250MHZ 16TSSOP 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) |
| 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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