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

XR-2211
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)
1.0
0.1
0.01
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ_RRRRRR000000ÎÎÎÎÎÎÎÎÎÎÎ_{======2514810K6000K0KKK}ÎÎÎÎÎÎÎÎÎÎÎ_WKWWWWWÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
100
1000
10000
f_O(HZ)
Figure 5. Typical Supply Current vs. V+
1,10010_{ÎÎÎÎÎÎÎÎÎÎÎ000 ÎÎÎÎÎÎÎÎÎÎÎ}⁽_CC^L₀₀^o_{==ÎÎÎÎÎÎÎÎÎÎÎ00}^g_..13^ic_{mÎÎÎÎÎÎÎÎÎÎÎ3Fm}^O_F^u_{ÎÎÎÎÎÎÎÎÎÎÎ}^tp_{ÎÎÎÎÎÎÎÎÎÎÎ}^ut_C^s_{CCC0ÎÎÎÎÎÎÎÎÎÎÎ=000}^O_===0.000^p_{0...ÎÎÎÎÎÎÎÎÎÎÎ}^e_30003001ⁿ_m113Fmm3^C_{ÎÎÎÎÎÎÎÎÎÎÎFFm}ⁱ_F^rc_{ÎÎÎÎÎÎÎÎÎÎÎ}^uit_{ÎÎÎÎÎÎÎÎÎÎÎ}^ed)_{ÎÎÎÎÎÎÎÎÎÎÎ}
0
1000
10000
f_O(Hz)
Figure 7. VCO Frequency vs. Timing Capacitor
Figure 6. VCO Frequency vs. Timing Resistor
1.02
1.01 ⁵
4
1.00
3
0.99
2
0.98
1
0.97
46
f_O = 1kHz
R_F = 10R₀
5
1
2
3
4
Curve R0
1
5K
2 10K
3 30K
4 100K
5 ^300K
8 10 12 14 16 18 20 22 24
V+ (Volts)
Figure 8. Typical f_O vs. Power Supply
Characteristics
+1.0
R0=10K
1MΩ
+0.5
0 ^R0=50K
R0=500K
500K
50K
10K
-0.5
R0=1MΩ
-1.0
-50 -25
V+ = 12V
R1 = 10 R₀
f_{O = 1 kHz}
0
25
50 75
Temperature (°C)
100 125
Figure 9. Typical Center Frequency Drift vs. Temperature
Rev. 3.01
12