Datasheet > MAX2310-MAX2316

MAX2310-MAX2316

更新时间： 2022-12-13 08:57:45

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
22页	334K
描述
CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer

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MAX2310-MAX2316 数据手册

CDMA IF VGAs and I/Q Demodulators

with VCO and Synthesizer

Pin Description (continued)

NAME

FUNCTION

MAX2310

MAX2312

MAX2314

MAX2316

TANKH+,

TANKH-

6, 7

5, 6

—

Differential Tank Input for High-Frequency Oscillator

—

LO Buffer Amplifier—active low

BUFEN

—

6, 7

—

N.C.

No Connection. Must be left open-circuit.

Mode Select. High selects CDMA mode; low selects FM

mode.

—

MODE

Internal VCO Output. Depending on setting of BD bit, LOOUT

is either the VCO frequency (twice the IF frequency) or one-

half the VCO frequency (equal to the IF frequency).

—

LOOUT

+2.7V to +5.5V Supply for Digital Circuits

Digital Ground

GND

REF

Reference Frequency Input

Shutdown Input—active low. Low powers down entire device,

including registers and serial interface.

SHDN

IOUT+,

IOUT-

Differential In-Phase Baseband Output, or FM signal output

FM_I mode is selected.

13, 14

Lock Output—open-collector pin. Logic high indicates phase-

locked condition.

LOCK

QOUT-,

QOUT+

Differential Quadrature-Phase Baseband Output. Disabled if

FM_I mode is selected.

16, 17

CLK

Clock input of the 3-wire serial bus

Enable Input. When low, input shift register is enabled.

Data input of the 3-wire serial bus.

DATA

2.7V to 5.5V Supply for Analog Circuits

VGC

VGA Gain Control Input. Control voltage range is 0.5V to 2.3V.

CDMA-,

CDMA+

23, 24

Differential CDMA Input. Active in CDMA mode.

—

FM+

N.C.

Differential Positive Input. Active in FM mode.

No Connection.

Differential Negative Input for FM signal. Bypass to GND for

single-ended operation.

—

FM-

STBY

BYP

Standby Input—active low. Low powers down VGA and demod-

ulator while keeping VCO, PLL, and serial bus on.

Bypass Node. Must be capacitively decoupled (bypassed) to

27, 28

analog V

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1...4 5 678 9 10...22

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