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AMIS-52150
Low-Power Transceiver with Clock and Data Recovery
Data Sheet
1.0 Introduction
The AMIS-52150 is a cost-effective, ultra-low power single-chip wireless transceiver. It combines the proven Amplitude Shift Key/On-Off
Key (ASK/OOK) modulation technology of the AMIS-52050 with data clock recovery.
Based on key features, such as dual independent receive channels, Quick Start crystal oscillator, Sniff Mode™ signal acquisition, and
data clock recovery, the AMIS-52150 is ideally suited for a wide range of applications, including point-to-point wireless data links, cost-
optimized wireless monitor solutions, and very low power remote wireless sensors, among others.
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 crystal oscillator
Ultra-low power RF Sniff Mode™, with wake-up on RSSI
Internal trim functions reduce external component requirements
I
2
C 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
Wake-up interrupt to external controller
3.0 Technical Features
•
Operating frequency range:
o
Quick Start, from 350MHz to 448MHz
o
Non-Quick Start, from 300MHz to 768MHz
•
TX output power: +12dBm
•
RX sensitivity:
o
Sniff Mode: -93dBm minimum
o
Receive: -117dBm minimum @ 1Kbps, with CDR
•
Data rate:
o
1-8Kbps with Manchester Coding
o
1-16Kbps 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: 2.3V to 3.6V
•
Modulation: ASK/OOK
•
Xtal start time: 15us (Quick Start)
•
Sniff Mode
TM
polling: 0.5ms to 16s (0.5ms or 64ms steps)
•
PLL lock time: <50us
•
Selectable data filter: Up to 20kHz
AMI Semiconductor
– Apr. 07 – M-20535-006
www.amis.com
1
AMIS-52150
Low-Power Transceiver with Clock and Data Recovery
•
Internal trim functions:
o
TX power (-3 to +12dBm)
o
Antenna impedance matching (Two independent channels)
o
Xtal, for frequency and Quick Start
o
RC oscillator frequency
o
Sniff Mode
TM
, for data threshold
o
Data slice
•
Clock and data recovery (Reduced data jitter)
2
•
I C interface: Control bus
•
Serial interface: Data input/output
•
Low frequency IF
•
Internal IF filtering
•
Package: 20-lead, 209mm SSOP
Data Sheet
4.0 Functional Block Diagram
The AMIS-52150 is a dual-channel receiver and a transmitter in a single, small outline package (Fig. 1). The receiver provides for 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 optimization, without the need for complex protocols to select the strongest channel. The AMIS-52150 can
be programmed to be a single channel or a dual-channel receiver, respectively. There exist internal trim functions for the RF receiver
frequency, for tuning each input port, for setting the internal filters to match the data rate, and for setting the threshold level for acquiring
an incoming signal, respectively. 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
the data. The slice threshold can be either set to a fixed level, or alternately, the transceiver can be configured to automatically set the
threshold level based on the incoming data.
The transmitter is a high efficiency power amplifier (PA) that is 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, in order to conform to component and manufacturing
tolerances. In addition, the design of the transceiver is based on a number of unique features.
The AMIS-52150 can be placed in a very low power state, with the crystal oscillator being Off while the low power RC oscillator
maintains the chip operation. In this low power state, the AMIS-52150 remains in the sleep mode until either the wake-up timer or an
TM
external microcontroller wake up the device, respectively. The receiver can be also configured for operation in Sniff Mode , where by
the device is programmed to wake up at regular intervals to sniff for received RF signals, returning to the sleep mode if a signal is not
detected. The AMIS-52150 contains a Quick Start circuit as well, which results in full operation of the crystal oscillator in an extremely
short time, in turn leading to much lower power consumption as compared to other transceiver products available in the market. In the
AMIS-52150, a programmable PLL is used to synchronize the data clock to the received data. This feature enables reducing much of
the jitter in the data signal.
These functions will be described in more detail later in the document.
AMI Semiconductor
– Apr. 07 – M-20535-006
www.amis.com
2
AMIS-52150
Low-Power Transceiver with Clock and Data Recovery
Data Sheet
Figure 1: AMIS-52150 Block Diagram
5.0 Operating and Maximum Specifications
Table 1: Operating Conditions
Sym.
Parameter
VDD
Positive supply
VSS
Ground
Temp
Temperature range
Min.
2.3
0
Typ.
3
0.0
+25
Max.
3.6
0.1
+50
Units
V
V
o
C
Table 2: Absolute Maximum Ratings
Sym.
Parameter
VDD
Positive supply
RFin
Max RF input RX1/RX2
VSS
Ground
Vin
Logical I/P voltage
Tstrg
Storage temperature
Min.
0.0
-0.3
-40
Max.
+4
+10
0.1
VDD+0.3
+120
Units
V
dBm
V
V
o
C
Table 3: Absolute Maximum Ratings
Idd (Supply Current)
Typ. Max.
Transmitting
20
25
Receiving
7.5
10
Sniff Mode
75
Off
500
Units
mA
mA
uA
nA
Conditions
50% duty cycle
1% sniff cycle
RC OSC Off
AMI Semiconductor
– Apr. 07 – M-20535-006
www.amis.com
3
AMIS-52150
Low-Power Transceiver with Clock and Data Recovery
Table 4: Electrical Characteristics; Digital Inputs
Parameter
Min.
Typ.
Max.
Vih
0.7*VDD
Vil
0.3*VDD
Iih
+1.0
Iil
-1.0
2
I C internal pull-up
15
20
Data Sheet
Units
V
V
uA
uA
KΩ
Table 5: Electrical Characteristics; Digital Outputs
Parameter
Min.
Typ.
Max.
Voh
0.8*VDD
Vol
0.4
Ioh
-1.0
Iol
+1.0
2
I C internal pull-up
15
20
Table 6: Electrical Characteristics; Analog TX
Parameter
Min.
Typ.
Max.
Frequency range
402
403.5
405
300
768
350
448
Modulation
1
8
1
16
Max. output power
11
12
13
On/Off ratio
70
VCO gain
75
PLL phase noise
-95
-97
Harmonics
-35
Crystal freq. spurs
-50
Time TX to RX
1
Units
V
V
mA
mA
KΩ
Units
MHz
MHz
MHz
Kbps
Kbps
dBm
dB
MHz/V
dBc/Hz
dBc/Hz
dBc
dBc
ms
Comments
Targeted
Non-Quick Start
Quick Start
Manchester-coded data
NRZ data
Transmit
Kvco
10kHz
100kHz
With typical matching components
50kHz PLL loop bandwidth
Table 7: Electrical Characteristics; Analog RX
Parameter
Min.
Typ.
Max.
Frequency range
402
403.5
405
300
768
350
448
Modulation
1
8
1
16
RF input
-117
-10
Noise figure
4.5
RF detect time
100
Time RX to TX
1
Units
MHz
MHz
MHz
Kbps
Kbps
dBm
us
ms
Comments
Targeted
Non-Quick Start
Quick Start
Manchester-coded data
NRZ data
TM
In Sniff Mode
AMI Semiconductor
– Apr. 07 – M-20535-006
www.amis.com
4
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