T2803 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'T2803' PDF : 28 Pages View PDF
T2803
12. Electrical Characteristics
Test conditions (unless otherwise specified): VS_REG = 3.2 V, Tamb = 25°C
Parameters
Test Conditions/Pins
IR Mixer (Pins 29, 30, 40 and 41)
Input impedance
Pins 29 or 30 (single ended)
Image rejection ratio
Pins 40 and 41
DSB noise figure
Pins 29 or 30 (single ended)
Conversion gain
Input intercept point
Rload = 200Ω
Pins 29 or 30 (single ended)
Output impedance
Pin 40 and 41 (differential)
IF Amplifier (Pins 26, 27, 34 and 35)
Input impedance
Pins 34 and 35 (differential)
Lower cut-off frequency
Upper cut-off frequency
Power gain
Bandwidth of external tank circuit Pins 26 and 27
Noise figure
RSSI (Pins 25, 34 and 35)
RSSI sensitivity
At IF_IN1,2; pins 34 and 35
RSSI compression
At IF_IN1,2; pins 34 and 35
RSSI dynamic range
RSSI resolution
Slope of the RSSI has to be steady
RSSI rise time
RSSI fall time
Quiescent output voltage
Pin = 30 to 100 dBµV, pin 25
Pin = 100 to 30 dBµV, pin 25
At Pin < 20 dBµV at IF_IN1, IF_IN2,
pin 25
Maximum output voltage
At Pin = 100 dBµV at IF_IN1, IF_IN2,
pin 25
FM Demodulator, BB-filter (Pins 19, 20, 23 and 24)
Co-channel rejection ratio
Sensitivity
Amplitude of recovered signal
at Pin = –75 dBm at IR-mixer input
Quality factor of external tank circuit
approximately 20, fres = FIF/2, pin 24
Nominal deviation of signal
±400 kHz, pin 24
Corner frequency
Pin 23: C = 68 pF
Output voltage DC range
Pin 24
DEMOD_DAC range
(see bus protocol E6 to E10)
VCOs
Frequency range
VCO 1, D12 VS = 1
VCO 2, D12 VS = 0
Tuning gain
Frequency control voltage range Pin 17
Symbol
Zin
IRR
NFDSB =
NFSSB
Gconv
IIP3
ZOUT
Zin
fl3dB
fu3dB
Gp
BW3dB
NF
Pmin
Pmax
DR
Acc
tr
tf
Vout
Vout
CCRR
S
A
fc
VoutDC
∆fIFcenter
fvco
fvco
Gtune
Vtune
4572I–DECT–07/05
Min.
Typ.
Max.
Unit
110 + j12
20
10
11
–7
175 +
j145
Ω
dB
dB
dB
dBm
Ω
1200 –
j480
90
130
85
10
9
Ω
MHz
MHz
dB
MHz
dB
20
dBµV
100
dBµV
80
dB
±2
dB
1
µs
1
µs
0.4
V
1.9
V
1
2289
2289
0.4
10
dB
0.5
V/MHz
450
mVpp
680
kHz
VS – 1
V
±5
%
2483
2483
MHz
MHz
200
MHz/V
2.8
V
23
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