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AMI SEMICONDUCTOR

AMIS-52100 Datasheet Preview

AMIS-52100 Datasheet

Transceiver

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AMIS-52100 Low-Power Transceiver with Clock and Data Recovery
Data Sheet
1.0 Introduction
The AMIS-52100 is a low-cost, ultra-low power single chip transceiver. It combines the proven amplitude shift key/on-off key
(ASK/OOK) modulation technology of the AMIS-52000 with data clock recovery. The AMIS-52100 is targeted at narrow band
applications in the 402 to 405MHz range.
Features such as dual independent receive channels, quick start crystal oscillator start up, Sniff Mode™ signal acquisition, and data
clock recovery make the AMIS-52100 ideally suited for a wide range of customer applications. Applications that the AMIS-52100 can be
used for are point-to-point wireless data links, low cost wireless monitors, very low power remote wireless sensors, and many other
uses.
2.0 Key Features
Data clock recovery
Auto slicing of data
Very low-power single-chip transceiver
Minimal external components
Low-power RC oscillator
Quick Start for the crystal oscillator
Extreme low-power RF Sniff Mode™, wakes on RSSI
Internal trim functions reduce external component requirements
I2C control interface
Serial TX/RX data port
Clock generation for an external microprocessor
Wake up on RSSI
Antenna diversity dual receiver
Internal VCO/PLL tuning varactor
Application wakeup interrupt to external controller
3.0 Technical Features
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Operating Frequency:
o Quick Start range 350 to 448MHz
o Non-Quick Start range 300 to 768MHz
o Targeted range 402 to 405MHz
TX Output Power: +12dBm
RX Sensitivity:
o Sniff Mode: -93dBm minimum
o Receive: -117dBm minimum @ 1Kbps with CDR
Data Rate:
o 1 to 8Kbps with Manchester Coding
o 1 to 16Kbps with NRZ data
Power Requirements:
o Receive: 7.5mA (continuous)
o Transmit: 25mA full power; 50 percent duty cycle
o Sniff Mode: 75uA (one percent duty cycle)
o Standby: 500nA (RC oscillator running)
Operating Voltage: 2.3 to 3.6V
Modulation: ASK/OOK
Xtal Start Time: 15us (Quick Start)
Sniff Mode Polling: 0.5ms to 16s (0.5ms or 64ms steps)
AMI Semiconductor – Rev 4.0, Mar. 06 – M-20535-004
www.amis.com
1




AMI SEMICONDUCTOR

AMIS-52100 Datasheet Preview

AMIS-52100 Datasheet

Transceiver

No Preview Available !

AMIS-52100 Low-Power Transceiver with Clock and Data Recovery
Data Sheet
PLL Lock Time: <50us
Selectable Data Filter: up to 20kHz
Internal Trim Function:
o TX power (-3 to +12dBm)
o Antenna impedance match (two independent channels)
o Xtal for frequency and Quick Start
o RC oscillator frequency
o Sniff Mode for data threshold
o Data slice
Clock and Data Recovery (reduced Data jitter)
I2C Interface: Control bus
Serial Interface: Data input/output
Low Frequency IF
Internal IF Filtering
Package: 20-lead, 209mm SSOP
4.0 Functional Block Diagram
The AMIS-52100 is a dual channel receiver and a transmitter in a single small outline package. The receiver provides two independent
receive channels with the signals combined in the data detection circuit. Summing the signals allows the two channels to be used for
antenna diversity without complex protocols to select the strongest channel. The AMIS-52100 can be programmed to be a single
channel or a dual channel receiver. There are internal trim functions for the RF receiver frequency, tuning each input port, setting the
internal filters to match the data rate, and to set the threshold level for acquiring an incoming signal. The receiver converts the received
RF signal to a low frequency IF. An RSSI circuit determines the strength of the received signal. A level detector samples the RSSI
signal level and compares that level to the slice threshold to recover data. The slice threshold can either be set to a fixed level or the
AMIS-52100 can determine the threshold level from the incoming data.
The transmitter is a high efficiency PA that is simply turned on or off by the serial data. The output power level is adjustable. The
frequency of the RF output can be tuned with an internal crystal trim function that allows the AMIS-52100 to abide component and
manufacturing tolerances. There are a number of unique circuit features. The AMIS-52100 can be placed in a very low power state with
the crystal oscillator off and a low power RC oscillator maintaining operations. There is an application wakeup mode where the AMIS-
52100 “sleeps” until either the application wakeup timer wakes the device or an external controller wakes the device. The receiver can
be used in a low power Sniff Mode where the AMIS-52100 is programmed to wake at times to “sniff” for received RF signals and then
return to “sleep” if a signal is not detected. The AMIS-52100 contains a Quick Start circuit that allows the crystal oscillator to return to
wwfuwll.DoaptaeSrahteioent4Uin.caonm extremely short time which allows the AMIS-52100 to consume much less power than comparable products. The
AMIS-52100 uses a programmable PLL to synchronize a data clock to the received data. This circuit can remove much of the jitter on
the data signal.
These functions will be described in more detail later in this document.
AMI Semiconductor – Rev 4.0, Mar. 06 – M-20535-004
www.amis.com
2


Part Number AMIS-52100
Description Transceiver
Maker AMI SEMICONDUCTOR
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AMIS-52100 Datasheet PDF






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