TS615IPWT(2004) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TS615IPWT
(Rev.:2004)

Dual Wide-Band Operational Amplifier with High Output Current

STMicroelectronics 

Power Down Mode Behavior

TS615

to this signal. This concept is particularly intended for the ADSL-over-voice modems, where the modem in

sleep mode, and must be woken up by the phone call.

Figure 67. Matching in sleep mode

Consumption=80µA

Matching

12.5Ω

Transformer

TS615 5Ω max.

1:2

25Ω

Line (100Ω)

12.5Ω

POWER DOWN

The system can be waked-up

from the line

Figure 68. Standby mode. Time On>Off

0

Enabled Output

-1

-2 Vout

-3

-4

-5

Vpdw

Disabled Output

-6

0

10

20

30

40

50

Time (µs)

Figure 69. Standby mode. Time Off>On

1

0

Disabled Output

−1

−2

−3

−4

−5

−6

0

1

2

3

Time (µs)

Vout

Enabled Output

Vpdw

4

5

Figure 70. Standby mode. input/output isolation vs. frequency: AV=+4, Rfb=620Ω,

VCC=±6V, Vout=3Vp

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120

-130

10k

100k

1M

10M

Frequency (Hz)

29/36

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