AYRE SA3291
www.onsemi.com
4
SPECIFICATIONS
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Value Units
Operating Temperature Range 0 to +40 °C
Storage Temperature Range −20 to +70 °C
Absolute Maximum Power Dissipation 50 mW
Maximum Operating Supply Voltage 1.65 VDC
Absolute Maximum Supply Voltage 1.8 VDC
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
WARNING: Electrostatic Sensitive Device − Do not open packages or handle except at a static−free workstation.
WARNING: Moisture Sensitive Device − RoHS Compliant; Level 4 MSL. Do not open packages except under controlled conditions.
Table 2. ELECTRICAL CHARACTERISTICS (Supply Voltage V
B
= NV
B
= 1.25 V; Temperature = 25°C)
Parameter
Symbol Conditions Min Typ Max Units
Minimum Operating Supply Voltage V
BOFF
Ramp down, audio path 0.93 0.95 0.97
V
Ramp down, control logic 0.77 0.80 0.83
NV
BOFF
Transceiver Operation 0.93 0.965 1.0
Supply Voltage Turn On Threshold
V
BON
Ramp up, Zinc Air battery 1.06 1.10 1.16
V
NV
BON
Ramp up, Zinc Air battery 1.06 1.10 1.14
EEPROM Burn Cycles − − 100 k − − cycles
Flash−RAM Write/Erase Cycle − − 10 k 100 k − cycles
Low Frequency System Limit − DSP, Transceiver − 125 − Hz
High Frequency System Limit
− DSP − − 16
kHz
− Transceiver (−3 dB) − 7 −
Total Harmonic Distortion THD V
IN
= −40 dBV − − 1 %
THD at Maximum Input THD
M
V
IN
= −15 dBV, HRX − ON − − 3 %
Clock Frequency f
CLK
− 3.78 − 4.10 MHz
NFMI TRANSCEIVER
Carrier Frequency
f
C
− − 10.597 − MHz
Modulation Scheme − TDMA, CPFSK − − − −
Supply Current in Sleep Mode I
sleep
− − 2 −
mA
Supply Current in Standby Mode I
standby
− 189 227 273
mA
Average Operating Current I
AVE
Bi−directional TDMA mode,
full chip operation
− 3.2 − mA
Transmitter Antenna Coil Voltage V
TX
AC Signal − − 12 V
PP
REGULATOR
Regulator Voltage
V
REG
− 0.87 0.90 0.93 V
System PSRR PSRR
SYS
1 kHz, Input referred, HRX enabled − 70 − dB
INPUT
Input Referred Noise
IRN Bandwidth 100 Hz − 8 kHz − −108 −106 dBV
Input Impedance Z
IN
1 kHz − 3 −
MW
Anti−aliasing Filter Rejection − f = f
CLK/2
− 8 kHz, V
IN
= −40 dBV − 80 − dB
Crosstalk − Between both A/D and Mux − 60 − dB
Maximum Input Level − − − −15 − dBV