RX3400芯片引脚定义引脚图及功能IC贸易商引脚图技术参数-中国IC网-芯三七

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产品型号RX3400的概述

芯片RX3400的概述 RX3400是一款高性能的微处理器，主要应用于嵌入式系统和工业控制领域。它结合了强大的计算能力和低功耗特性，适合用于需要长时间稳定运行的设备。随着物联网和智能设备的普及，RX3400在数据处理、网络通信和实时控制方面的能力，使其获得了广泛的关注。 RX3400采用了先进的制造工艺，通常以节能和高效为设计目标。具备多种功能接口，RX3400能够与各种外部设备进行灵活连接。这一芯片在设计上为开发者提供了极大的便利，使其适用于多种行业需求。芯片RX3400的详细参数 RX3400的主要技术参数包括其核心架构、时钟频率、内存容量、功耗、支持的外设接口等。以下列出了RX3400的一些关键参数： - 核心架构：RX的微控制器系列拥有高效的RISC架构，具备较高的计算能力。 - 主频：RX3400的主频通常在40MHz到120MHz之间，依赖于具体的型号配置。 - 内存：内...

产品型号RX3400的Datasheet PDF文件预览

RX3400 Low Power ASK Receiver IC

the wireless IC company

HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information con-

tained in this datasheet is subject to change without prior notice. HiMARK Technology, Inc. assumes no responsibility

for the use of any circuits shown in this datasheet.

Description

The RX3400 is a low power ASK receiver IC which is fully compatible with the Mitel

KESRX01 IC and is suitable for use in a variety of low power radio applications including

remote keyless entry. The RX3400 is based on a single-conversion, super-heterodyne

receiver architecture and incorporates an entire phase-locked loop (PLL) for precise local

oscillator generation. In addition, the RX3400 provides an RSSI output.

Features

Extremely low power operation

Low external part count

Receiver input frequency: 290 – 460 MHz

On-chip VCO with integrated PLL using crystal oscillator reference

PLL power down feature

Integrated IF and data filters

RSSI output

SSOP-24 package (0.64 mm pitch)

Applications

Wireless mouse

Video sender remote controller

Car alarm and home security systems

Block Diagram

XTAL2

XTAL1

DF2

DF1

DF0

RSSI

VCO2

VCO1

VSS1

CHARGE

PUMP

CRYSTAL

OSCILLATOR

VCO

DATA FILTER

PFD

RSSI

LOG

AMP

PEAK

DETECTOR

MIXER

1-BIT

FILTER

COMPARATOR

LNA

ASK

REF

ASK

OUT

DC1

DC2

MIX

OUT

MIX

OUT

VSS2

RFIN

PEAK

IFIN

VCC

Page 1

March 2001

RX3400

the wireless IC company

Package and Pin Assignment

SSOP-24 (0.64 mm pitch)

IFDC1

IFDC2

IFIN

XTAL2

23 XTAL1

DF2

DF1

DF0

MIXOUT

VCC

MIXIN

RFOUT

VSS2

RFIN

VCO2

VCO1

ASKREF

ASKOUT

PEAK 12

13 VSS1

Dimensions in mm

Dimensions in inch

Symbols

min.

1.35

0.10

—

nom.

1.60

—

max.

1.75

0.25

—

min.

0.053

0.004

—

nom.

0.064

—

max.

0.069

0.010

—

1.45

0.25

—

0.057

0.010

—

0.20

0.19

8.55

5.80

3.80

—

0.30

0.25

8.75

6.20

4.00

—

0.008

0.007

0.337

0.228

0.150

—

0.012

0.010

0.344

0.244

0.157

—

0.64

—

0.025

—

0.40

—

1.27

0.10

0.016

—

0.050

0.004

—

0°

8°

0°

8°

Page 2

March 2001

RX3400

the wireless IC company

Pin Descriptions

Number

Name

IFDC1

IFDC2

IFIN

Description

Number

Name

VSS1

Description

Ground

IF amplifier feedback

decoupling connections

PLL power down

IF amplifier input

Mixer output

VCO1

VCO2

RSSI

Open collector differential

VCO outputs

MIXOUT

VCC

Nominal 5 V supply

RF mixer input

RSSI output

MIXIN

RFOUT

VSS2

No connection

Loop filter output

Open collector LNA output

LNA ground

DF0

Data filter external connec-

tions

RFIN

LNA input

DF1

ASKREF

ASKOUT

PEAK

Comparator reference level

Comparator output

Peak detector output

DF2

XTAL1

XTAL2

Crystal oscillator external

connections

Page 3

March 2001

RX3400

the wireless IC company

Absolute Maximum Ratings

V_SS= V_SS1= V_SS2= 0 V

Parameter

Symbol

V_CC

Rating

V_SS– 0.5 to V_SS+ 8.0

–40 to 85

Unit

Supply voltage

T_OPR

T_STG

T_SLD

t_SLD

Operating temperature range

Storage temperature range

Soldering temperature range

Soldering time range

°C

–55 to 150

255

Recommended Operating Conditions

V_SS1= V_SS2= 0 V

Value

Parameter

Symbol

Unit

min.

4.75

290

typ.

5.0

max.

7.0

V_CC

f_RFIN

T_A

Supply voltage range

RF input frequency

Operating temperature

460

MHz

–10

°C

Page 4

March 2001

RX3400

the wireless IC company

Electrical Characteristics

(V_CC= 4.75 to 7.0 V, V_SS1= V_SS2= 0 V, T_A= –40 to 85 °C unless otherwise noted)

Value

typ.

2.4

Parameter

Symbol

Condition

Unit

min.

max.

I_CC,total

I_CC,noPLL

α_SENS

α_SH

V_CC= 5 V

Current consumption

3.0

2.4

V_CC= 5 V; V_PD= 0 V

f_RFIN= 434 MHz; 2 KB/s

Current consumption (PLL off)

Sensitivity^a

1.8

–103

–100

dBm

Signal handling^b

-30

Integrated IF filter –3-dB low pass cutoff

frequency

f_IF,–3dB

450

550

750

250

KHz

Adjacent channel rejection^c

Peak detector source current

Peak detector leakage current

Charge pump source/sink current

α_ACR

I_peak

I_leak

I_CP

µA

500

±30

V_CC

0.5

–

V_CC

0.5

V_IH,PD

V_IL,PD

PD logic HIGH input voltage

V_SS2

0.5

V_SS2

0.5

PD logic LOW input voltage

0.7 ×

V_CC

V_OH,ASKOUT

I_load= 10 µA

ASKOUT logic HIGH output voltage

ASKOUT logic LOW output voltage

0.3 ×

V_CC

V_OL,ASKOUT

a. Sensitivity is defined as the minimum average signal level measured at the input which is necessary to

achieve a bit error rate of 0.01 when the input signal is a return-to-zero (RZ) pulse with an average duty

cycle of 50%. The RF input is assumed to be matched to 50 ohms.

b. Signal handling is defined as the maximum input signal capable of being successfully demodulated. It

is assumed that the input signal is ASK modulated with a minimum extinction ratio of 40 dB. The RF

input is assumed to be matched to 50 ohms.

c. Adjacent channel rejection is defined for an interfering tone α_ACR[dB] above the receiving threshold

and 10 MHz offset from the carrier giving a 3 dB reduction in sensitivity.

Page 5

March 2001

RX3400

the wireless IC company

Functional Description

The RX3400 ASK receiver IC incorporates an LNA; mixer; PLL-based local oscillator

including VCO, fixed divider (÷ 64), reference crystal oscillator, phase-frequency detector

(PFD), and charge pump; IF filter; logarithmic amplifier; data filter; peak detector; and 1-

bit comparator and is capable of demodulating ASK input signals.

PLL Power-down Function

The PLL portion of the IC can be powered up and down through the control of the PD

input (pin 14). During PLL power down operation, the reference crystal oscillator, fixed

VCO divider, PFD, and charge pump are all shut off and the current consumption of the IC

drops by approximately 600 µA. The VCO circuitry remains on and may be configured to

operate as a buffer amplifier for an external SAW-based oscillator.

1-bit Comparator

The integrated 1-bit comparator operates as a data slicer and “squares up” the data filtered

RSSI output from the logarithmic amplifier. The decision threshold voltage level for the

1-bit comparator is stored on an external capacitor connected to the ASKREF pin.

Page 6

March 2001

RX3400

the wireless IC company

Application Circuit

434 MHz

100 nF

6.775 MHz

100 pF 100 pF

IF DC1

IF DC2

IFIN

XTAL2

XTAL1

DF2

220 pF

150 pF

MIX OUT

VCC

DF1

DF0

220 pF

Vcc 1

MIX IN

RF OUT

VSS2

27 nH

Vcc 1

1 uF

56 pF

100 pF

ANT

VCO2

VCO1

33 pF

47 KΩ

100 pF

RFIN

56 nH

BB833

27 nH

8.2 pF

ASK REF

ASK OUT

PEAK

18 KΩ

33 pF

560 pF

47KΩ

VSS1

4.3KΩ

1 uF

1 MΩ

Data O/P

Power Down

*: mean “Layout Dependent”

Page 7

March 2001

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