ADMFM2000ABVZ datasheet(25/28 Pages) AD

25 / 28 page

Data Sheet

ADMFM2000

APPLICATIONS INFORMATION

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Rev. 0 | 25 of 28

Table 9. Connection Descriptions (Continued)

Functional Blocks

Pin No.

Mnemonic

Description

Basic Connection

VDD_LO_DRIVER_2,

VDD_LNA_2

voltage for Channel 2 LO driver, analog 5.0 V supply

voltage for Channel 2 LNA.

close as possible to the

pins.

−5 V Supply Voltage for

DSA

B18

VSS_DSAS

Analog −5.0 V supply voltage for DSAs.

Decouple this pin using 10

pF and 0.1 μF capacitors

to ground. Locate the

decoupling capacitors as

close as possible to the pin.

LNA Inputs

D2, L2

RF_IN_1, RF_IN_2

Single-ended RF inputs for Channel 1 and Channel 2.

Connect these pins to an

RF input source with a

typical input power of −20

dBm.

LNA Outputs

B6, M6

LNA_OUT_1,

LNA_OUT_2

Single-ended RF outputs for Channel 1 and Channel 2.

Connect these pins to signal

analyzer.

Mixer Inputs

B10, M10

MIXER_IN_1,

MIXER_IN_2

Single-ended mixer inputs for Channel 1 and Channel 2.

Connect these pins to an

RF input source with a

typical input power of −10

dBm.

LO Input

LO_IN

Single-ended LO input for Channel 1 and Channel 2.

Connect this pin to RF input

source, typical input power

6 dBm.

IF Inputs

B12, M12

RF_BYPASS_IN_1,

RF_BYPASS_IN_2

Single-ended IF inputs for Channel 1 and Channel 2.

Connect these pins to an IF

input source with a typical

input power of −20 dBm.

IF Outputs

F18, L18

IF_OUT_1, IF_OUT_2

Single-ended IF outputs for Channel 1 and Channel 2.

Connect these pins to signal

analyzer.

Amplifier Gain Control

B2, K4, F4, G4

VGG_RFAMP_1,

VGG_RFAMP_2,

VGG_LOAMP_1,

VGG_LOAMP_2

Optional gain control voltage, these pins are internally

self-biased and must normally be left open.

Set these pins to left open.

Switch Control

B15, B16, L14, K14

SW1_CTRL_A,

SW1_CTRL_B,

SW2_CTRL_A,

SW2_CTRL_B

Channel 1 Switch Control Input A, and Channel 1 Switch

Control Input B, Channel 2 Switch Control Input A, and

Channel 2 Switch Control Input B.

These pins must always be

kept at a valid logic level

(Refer to Table 1).

DSA Attenuation

D15, D14, C14, C15, C16,

M14, M15, M16, L15, L16

DSA1_Vx1, DSA2_Vx1

Channel 1 DSA attenuation control voltage, and Channel

2 DSA attenuation control voltage.

These pins must always be

kept at a valid logic level

(Refer to Table 1) and not

be left floating.

Ground

A5, A7, A9, A11, A13, B3,

B5, B7, B8, B9, B11, B13,

B14, B17, C1 to C13, C17,

C18, D3 to D13, D16, D17,

E1 to E3, E16 to E19, F2, F3,

F6 to F14, F16, F17, G1 to

G3, G6 to G14, G16 to G19,

H3, H4, H6 to H14, H16 to

H18, J1 to J4, J16, J17, K1 to

K3, K5, K6, K8 to K13, K15

to K19, L3 to L13, L17, M1

to M3, M5, M7 to M9, M11,

M13, M17 to M19, N5, N7,

N9, N11, N13

GND

Ground.

Connect these balls to the

ground of the PCB.

1 x = 0, 1, 2, 3, and 4

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