ADF4112 AD [Analog Devices], ADF4112 Datasheet - Page 5

• Manufacturer Part Number: ADF4112
• Description: 300 MHz to 1000 MHz Quadrature Modulator
• Manufacturer: AD [Analog Devices]

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 3. Pin Function Descriptions
Pin No.
1, 2, 7, 10 to 12,
21, 22
3 to 6, 14 to 18
19, 20, 23, 24
8, 9
13
Mnemonic
COM1, COM2,
COM3, COM4
VPS1, VPS2, VPS3,
VPS4, VPS5
IBBP, IBBN, QBBN,
QBBP
LOIP, LOIN
VOUT
Exposed Paddle
Description
Input Common Pins. Connect to ground plane via a low impedance path.
Positive Supply Voltage Pins. All pins should be connected to the same supply (V
adequate external bypassing, connect 0.1 μF capacitors between each pin and ground. Adjacent
power supply pins of the same name can share one capacitor (see Figure 25).
Differential In-Phase and Quadrature Baseband Inputs. These high impedance inputs must be
dc-biased to 500 mV dc, and must be driven from a low impedance source. Nominal characterized
ac signal swing is 700 mV p-p on each pin. This results in a differential drive of 1.4 V p-p with a
500 mV dc bias. These inputs are not self-biased and must be externally biased.
50 Ω Single-Ended Local Oscillator Input. Internally dc-biased. Pins must be ac-coupled. AC-couple
LOIN to ground and drive LO through LOIP.
Device Output. Single-ended, 50 Ω internally biased RF output. Pin must be ac-coupled to the load.
Connect to ground plane via a low impedance path.
COM1
COM1
VPS1
VPS1
VPS1
VPS1
Figure 2. Pin Configuration
1
2
3
4
5
6
Rev. 0 | Page 5 of 20
(Not to Scale)
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TOP VIEW
18
17
16
15
14
13
VPS5
VPS4
VPS3
VPS2
VPS2
VOUT
S
). To ensure
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