ADL5375-15ACPZ-R7 datasheet(28/36 Pages) AD

28 / 36 page

ADL5375

Data Sheet

Rev. C | Page 28 of 36

–101

–109

–107

–108

–106

–105

–104

–103

–102

LO DRIVE (dBm)

ADL5375-15

ADL5375-05

Figure 71. GSM/Edge (8-PSK) 6 MHz Offset Noise at 940 MHz vs. LO Drive,

Output Power = 0 dBm

W-CDMA OPERATION

The ADL5375 is suitable for W-CDMA operation. Figure 72

and Figure 73 show the adjacent and alternate channel power

ratios for the ADL5375-05 and ADL5375-15, respectively, at an

LO frequency of 2140 MHz.

–20

–18

–59

–61

–63

–65

–67

–69

–71

–73

–75

–77

–79

–81

–83

–85

–87

–16

–14

–12

–10

–8

–6

–4

OUTPUT POWER (dBm)

ALTERNATE CPR

ADJACENT CPR

Figure 72. ADL5375-05 Single-Carrier W-CDMA Adjacent and Alternate

Channel Power vs. Output Power at 2140 MHz; LO Power = 0 dBm

–20

–18

–16

–14

–12

–10

–8

–6

–4

OUTPUT POWER (dBm)

ALTERNATE CPR

ADJACENT CPR

–87

–85

–83

–81

–79

–77

–75

–73

–71

–69

–67

–65

–63

–61

–59

Figure 73. ADL5375-15 Single-Carrier W-CDMA Adjacent and Alternate

Channel Power vs. Output Power at 2140 MHz; LO Power = 0 dBm

Figure 72 and Figure 73 show that both versions of the ADL5375

are able to deliver about or better than −73 dB ACPR at an

output power of −10 dBm.

Figure 74 illustrate the sensitivity of the EVM to variations in

LO drive at 2140 MHz for the ADL5375-05 and ADL5375-15.

–6

6.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

–4

–2

LO DRIVE (dBm)

ADL5375-15

ADL5375-05

Figure 74. Single Carrier W-CDMA Composite EVM vs. LO Drive at 2140 MHz;

Output Power = −10 dBm

The EVM exhibits improvements with a local feedthrough nulling

operation.

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