BL0921

BL0921

BL0921

BL0921

http://www.belling.com.cn

- 13 -

3/15/2007

Total 13 Pages

Single Phase Energy Meter IC

Single Phase Energy Meter IC

Single Phase Energy Meter IC

Single Phase Energy Meter IC

with Integrated Oscillator

with Integrated Oscillator

with Integrated Oscillator

with Integrated Oscillator

channel. We can see that while increasing the gain, the input dynamic range is decreasing.

G

Gain

Maximum

Differential Signal

1

1

±660mV

0

16

±41mV

Analog Input Range

The maximum peak differential signal on Voltage Channel is ± 660 mV, and the common-mode

voltage is up to 100 mV with respect to GND.

The analog inputs V1A, V1B, and V1N have the same maximum signal level restrictions as V2P

and V2N. However, The Current Channel has a programmable gain amplifier (PGA) with

user-selectable gains of 1,16. These gains facilitate easy transducer interfacing. The maximum

differential voltage is ±660 mV and the maximum common-mode signal is ±100 mV.The

corresponding Max Frequency of CF/F1/F2 is shown in the following table.

Max Frequency

of F1, F2 (Hz)

CF Max Frequency (Hz)

S1

S0

Fz

DC

AC

DC

AC

0

0

1.7

0.45

0.22

64

×F1,F2=28.8

64

×F1,F2=14.4

0

1

3.4

0.90

0.45

32

×F1,F2=28.8

32

×F1,F2=14.4

1

0

6.8

1.80

0.90

16

×F1,F2=28.8

16

×F1,F2=14.4

1

1

13.6

3.60

1.80

8

×F1,F2=28.8

8

×F1,F2=14.4

Package Dimensions

SOP16

Notice： Sample tested during initial release and after any redesign or process change

that may affect parameter. Specification subjects to change without notice. Please ask

for the newest product specification at any moment.