AD9874 Просмотр технического описания (PDF) - Analog Devices
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Компоненты Описание
производитель
AD9874 Datasheet PDF : 40 Pages
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AD9874
(VDDI = VDDF = VDDA = VDDC = VDDL = VDDD = VDDH = VDDx, VDDQ = VDDP = 5.0 V, fCLK = 18 MSPS, fIF = 109.56 MHz, fLO = 107.4 MHz,
TA = 25؇C, LO = –5 dBm, LO and CLK Synthesizer Disabled, 16-Bit Data with AGC and DVGA enabled, unless otherwise noted.)1
–17.5
–17.5
100
80
–40؇C +25؇C
60
+85؇C
40
20
–18.0
–18.5
–19.0
–19.5
–20.0
+85؇C
+25؇C
–40؇C
–18.0
–18.5
–19.0
–19.5
–20.0
+85؇C
+25؇C
–40؇C
0
–19.4 –19.2 –19.0 –18.8 –18.6 –18.4
IFIN CLIP POINT – dBm
TPC 4a. CDF of Maximum VGA
Attenuation Clip Point (VDDx = 3.0 V,
High Bias2)
–20.5
2.7
3.0
3.3
3.6
VDDx – V
TPC 4b. Maximum VGA Attenuation
Clip Point vs. Supply (High Bias2)
–20.5
2.7
3.0
3.3
3.6
VDDx – V
TPC 4c. Maximum VGA Attenuation
Clip Point vs. Supply (Low Bias3)
100
80
–40؇C
+25؇C +85؇C
60
40
20
0
–31.6 –31.4 –31.2 –31.0 –30.8 –30.6 –30.4
IFIN CLIP POINT – dBm
TPC 5a. CDF of Minimum VGA
Attenuation Clip Point (VDDx = 3.0 V,
High Bias2)
–29.5
–30.0
–30.5
–31.0
–31.5
+85؇C
+25؇C
–40؇C
–32.0
2.7
3.0
3.3
3.6
VDDx – V
TPC 5b. Minimium VGA Attenuation
Clip Point vs. Supply (High Bias2)
–29.5
–30.0
–30.5
–31.0
+85؇C
–31.5
+25؇C
–32.0
2.7
–40؇C
3.0
3.3
3.6
VDDx – V
TPC 5c. Minimium VGA Attenuation
Clip Point vs. Supply (Low Bias3)
100
80
–40؇C
60
+25؇C
+85؇C
40
20
0
18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0
SUPPLY CURRENT – mA
TPC 6a. CDF of Supply Current
(VDDx = 3.0 V, High Bias2)
16
ANALOG
14
(IDDA, IDDF, AND IDDI)
12
10
8
6
DIGITAL
(IDDD, IDDC, AND IDDL)
4
DIGITAL INTERFACE
2
(IDDH)
0
13 15 17 19 21 23 25
fCLK – MHz
TPC 6b. Supply Current vs. fCLK
(VDDx = 3.0 V, High Bias2)
1Data taken with Toko FSLM series 10 µH inductors.
2High Bias corresponds to LNA_Mixer Setting of 33 in SPI Register 0x01.
3Low Bias corresponds to LNA_Mixer Setting of 12 in SPI Register 0x01.
REV. A
–9–
18
ANALOG
16
(IDDA, IDDF, AND IDDI)
14
12
10
8
6
DIGITAL
(IDDD, IDDC, AND IDDL)
4
2
DIGITAL INTERFACE
(IDDH)
0
2.7
3.0
3.3
3.6
VDDx – V
TPC 6c. Supply Current vs. Supply
(High Bias2)
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