Super Device Microelectronics Co SD101B Datasheet

Super Device Microelectronics Co., Ltd.

SD101B Low Power Receiver IC

Description

The SD101B is a low power receiver IC and it is suitable for use in a
variety of low power radio applications including remote keyless entry. The
SD101B 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 SD101B 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

Functional Description

The SD101B 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 1bit comparator and is capable of
demodulating ASK input signals.

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SD101B

Package and Pin Assignment

Super-Devic

SD101B

e

Symbols

Dimensions in mm Dimensions in inch

Min. Nom. Max. Min. Nom. Max.

A 1.35 1.60 1.75 0.053 0.064 0.069
A1 0.10
A2

－

－

1.45

0.25 0.004 0.010
－ －

0.057

－
b 0.20 0.25 0.30 0.008 0.010 0.012
C 0.19

D 8.55
E 5.80

E1 3.80

e

－

L 0.40

y

－ －

0 00

－

－
－
－

0.64

－

－

0.25 0.007

8.75 0.337

6.20 0.228

4.00 0.150

－

－

1.27 0.016

0.10

0

0

g

－ －

0

－

－
－
－

0.025

－

－

0.010

0.344

0.244

0.157

－

0.050

0.004
8

0

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