XR-2211A Datasheet, PDF (12/24 Pages) Exar Corporation – FSK Demodulator/ Tone Decoder

XR-2211A
20
15
R₀=5KΩ
10
R₀=10KΩ
5
R₀>100K
0
4 6 8 10 12 14 16 18 20 22 24
Supply Voltage, V⁺ (Volts)
0.100..1011ÎÎÎÎÎÎÎÎÎÎÎ00 ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎRRRRRR000000ÎÎÎÎÎÎÎÎÎÎÎ======2514810K6000K0KKKÎÎÎÎÎÎÎÎÎÎÎWKWWWW1W0ÎÎÎÎÎÎÎÎÎÎÎ00 ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ10ÎÎÎÎÎÎÎÎÎÎÎ000
f_O(HZ)
Figure 5. Typical Supply Current vs. V+
(Logic Outputs Open Circuited)
1,000
100
10
ÎÎÎÎÎÎÎÎÎÎÎ_0CCÎÎÎÎÎÎÎÎÎÎÎ_00==00..ÎÎÎÎÎÎÎÎÎÎÎ_13m3FmFÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ_C1ÎÎÎÎÎÎÎÎÎÎÎ_{CCC00=0000===00.000}ÎÎÎÎÎÎÎÎÎÎÎ_{0...30003001m113}ÎÎÎÎÎÎÎÎÎÎÎ_Fmm3FFmFÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ₁ÎÎÎÎÎÎÎÎÎÎÎ₀₀₀₀
f_O(Hz)
Figure 6. VCO Frequency vs. Timing Resistor
111000......000999210987ÎÎÎÎÎÎÎÎÎ41352ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎRfOFÎÎÎÎÎÎÎÎÎ==11kÎÎÎÎÎÎÎÎÎ0HRz0ÎÎÎÎÎÎÎÎÎCÎÎÎÎÎÎÎÎÎu12345rveÎÎÎÎÎÎÎÎÎ2131300ÎÎÎÎÎÎÎÎÎR4500000KKKKK ÎÎÎÎÎÎÎÎÎ1 53ÎÎÎÎÎÎÎÎÎ
4 6 8 10 12 14 16 18 20 22 24
V+ (Volts)
Figure 7. VCO Frequency vs. Timing Capacitor
+1.0
R0=10K
1MΩ
Figure 8. Typical f_O vs. Power Supply
Characteristics
+0.5
0 ^R0=50K
R0=500K
500K
50K
10K
-0.5
R0=1MΩ
-1.0
V+ = 12V
R1 = 10 R₀
f_{O = 1 kHz}
-50 -25 0
25
50 75 100 125
Temperature (°C)
Figure 9. Typical Center Frequency Drift vs. Temperature
Rev. 1.01
12