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ADL5370-EVALZ

300 MHz to 1000 MHz Quadrature Modulator

Analog Devices 

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

ADL5370

COM1 1

COM1 2

VPS1 3

VPS1 4

VPS1 5

VPS1 6

ADL5370

TOP VIEW

(Not to Scale)

18 VPS5

17 VPS4

16 VPS3

15 VPS2

14 VPS2

13 VOUT

Figure 2. Pin Configuration

Table 3. Pin Function Descriptions

Pin No.

Mnemonic

1, 2, 7, 10 to 12, COM1, COM2,

21, 22

COM3, COM4

3 to 6, 14 to 18 VPS1, VPS2, VPS3,

VPS4, VPS5

19, 20, 23, 24

IBBP, IBBN, QBBN,

QBBP

8, 9

LOIP, LOIN

13

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 (VS). To ensure

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.

Rev. 0 | Page 5 of 20

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