W925EP01 Datasheet, PDF (104/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
8.4 Electrical Characteristics - Gain Control OP-Amplifier
(Electrical characteristics supersede the recommended operating conditions unless otherwise stated.)
PARAMETER
SYMBOL MIN _TYP‡ MAX UNITS TEST CONDITIONS
Input Leakage Current
I_IN
1
uA _{VSS ≤ VIN ≤ VDD}
Input Resistance
R_IN
10
MΩ
Input Offset Voltage
V_OS
Power Supply Rejection Ratio
PSRR 40
Maximum
(GCFBx)
Capacitive
Load _CL
25 mV
dB
1 kHz 0.1 Vpp ripple on
V_DD
100 pF
Maximum Resistive Load (GCFBx)
R_L
50
kΩ
Note: "‡" Typical figure are at V_DD = 5V and temperature = 25 ℃ are design aids only, not guaranteed and not subject to
production testing.
8.5 AC Electrical Characteristics
(AC timing characteristics supersede the recommended operating conditions unless otherwise stated.)
Dual Tone Alert Signal Detection Interface
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
Low Tone Frequency
High Tone Frequency
Frequency Deviation accept
f_L
2130
f_H
2750
1.1
Hz
Hz
%
3
Frequency Deviation reject
Maximum Input Signal Level
3.5
%
4
0.22 dBma
Input Sensitivity per tone
-40
-38
dBm
5
Reject Signal Level per tone
Positive and negative twistb accept
-48 dBm
5
7
dB
Noise Tolerance
SNR_TONE 20
Notes:
a. dBm = decibels with a reference power of 1 mW into 600 ohms, 0 dBm = 0.7746 Vrms.
b. Twist = 20 log (fH amplitude / fL amplitude).
1. Both tones have the same amplitude. Both tones are at the nominal frequencies.
2. Band limited random noise 300 - 3400 Hz. Present only when tone is present.
3. Range within which tones are accepted.
4. Ranges outside of which tones are rejected.
5. These characteristics are at V_DD = 5V and temperature = 25 ℃.
dB
1, 2
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