SC6579 datasheet(3/9 Pages) SILAN

3 / 9 page

Silan

Semiconductors

SC6579

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2001.12.30

ELECTRICAL CHARACTERISTICS

(VDDA =VDDD =5 V; Tamb =25°C and measurements taken in Fig.1; unless otherwise specified.)

Comparator input (pin 7)

Minimum Input Level (RMS value)

Vi(rms)

f = 57 kHz

Input Resistance

110

150

Ω

Oscillator input (pin 13)

HIGH-level Input Voltage

VIH

VDDD = 5.0 V

4.0

LOW-level Input Voltage

VIL

VDDD = 5.0 V

1.0

Input Current

VDDD = 5.5 V

µA

To be continued

Parameter

Symbol

Test condition

Min.

Typ.

Max.

Unit

Analog Supply Voltage (pin 5)

VDDA

3.6

5.0

5.5

Digital Supply Voltage (pin 12)

VDDD

3.6

5.0

5.5

Total Supply Current

Itot

I5 +I12

Reference Voltage (pin 3)

Vref

VDDA = 5 V

2.5

MPX input (signal before the capacitor on pin 4)

RDS Amplitude (RMS value)

Vi MPX (rms)

∆f ±1.2 kHz RDS;

∆f ±3.5 kHz ARI; see Fig.5

f = 5±2 kHz

200

f < 50 kHz

1.4

f < 15 kHz

2.8

Maximum Input Signal Capability

(peak-to-peak value)

Vi MPX (p-p)

f > 70 kHz

3.5

Input Resistance

R4-6

f = 0 to 100kHz

Ω

Signal Gain

G8-4

f = 57 kHz

57 kHz band-pass filter

Center Frequency

Tamb = -40 to +85 °C

56.5

57.0

57.5

kHz

-3 dB Bandwidth

2.5

3.0

3.5

kHz

∆f =±7 kHz

f < 45 kHz

f < 20 kHz

Stop Band Gain

f > 70 kHz

Output Resistance (pin 8)

Ro(8)

f = 57 kHz

Ω

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