ACPL-7970 Просмотр технического описания (PDF) - Avago Technologies

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ACPL-7970

Optically Isolated Sigma-Delta Modulator

Avago Technologies 

Table 8. Timing Specifications

Unless otherwise noted, TA = -40° C to +105° C, VDD1 = 4.5 V to 5.5 V, VDD2 = 3 V to 5.5 V.

Parameter

Symbol Min. Typ. Max. Units Test Conditions/Notes

Fig.

Modulator Clock Output Frequency

fMCLK

9

10 11 MHz Clock duty cycle 40% to 60% 13

Data Access Time After MCLK Rising Edge tA

40 ns

CL = 15 pF

4

Data Hold Time After MCLK Rising Edge tH

10

ns

CL = 15 pF

4

MCLK

tA

tH

MDAT

Figure 4. Data timing.

Table 9. Package Characteristics

Parameter

Symbol Min. Typ. Max. Unit Test Condition

Note

Input-Output Momentary Withstand

Voltage

VISO

5000

Vrms RH < 50%, t = 1 min; TA = 25° C 1, 2

Input-Output Resistance

RI-O

1012 1013

Ω

VI-O = 500 VDC

3

1011

Ω

TA = 100° C

3

Input-Output Capacitance

CI-O

1.4

pF

f = 1 MHz

3

Notes:

1. In accordance with UL 1577, each optocoupler is proof tested by applying an insulation test voltage ≥ 6000 Vrms for 1 second (leakage detection

current limit, II-O ≤ 5 µA). This test is performed before the 100% production test for partial discharge (method b) shown in IEC/EN/DIN EN 60747-

5-5 Insulation Characteristic Table.

2. The Input-Output Momentary Withstand Voltage is a dielectric voltage rating that should not be interpreted as an input-output continuous

voltage rating. For the continuous voltage rating, refer to the IEC/EN/DIN EN 60747-5-5 insulation characteristics table and your equipment level

safety specification.

3. This is a two-terminal measurement: pins 1–4 are shorted together and pins 5–8 are shorted together.

8

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