STLC1512 查看數據表（PDF） - STMicroelectronics

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STLC1512

NorthenLite™ G.lite Loop Driver

STMicroelectronics 

STLC1512

Figure 3. Power Supply Rejection of the Power Amplifier1

W DB (PAOUT)

-40

-60

dB

-80

-100

3.00e+04

1.00e+05

Hz

6.00e+05

<1>This is a nominal specification. 6 dB of margin should be added to arrive at a worst case spec.

4.3 Programmable Gain Amplifier (PGA) Performance Specifications

It should be noted that the PGA and LPF in the receive path must be AC coupled to avoid problems with ampli-

fying any offsets.

Both the PGA and the amplifiers are specified in terms of the silicon only. This is to allow the system design to

be more flexible. The appendices show how to convert some of the silicon specs to system specs.

Table 5. PGA performance Specifications

Unless otherwise specified, NOM specifications apply for VCC=5.0V, temperature range outlined in Table 4.4,

nominal process and bias current. MAX and MIN performances with 5% variation on VCC, -40 <= Tambient <=85oC,

and worst case process and bias current and a minimum load of 440 W.

DESCRIPTION

MIN

NOM

MAX

UNITS

COMMENTS

Absolute Voltage Gain1,2

D=00

D=01

D=10

D=11

11.4

11.8

12.2

dB

1.4

1.8

2.2

dB

-5.6

-5.2

-4.8

dB

-19.8

-19.2

-18.8

dB

Where ‘D’ is the binary value

of the control word

[PGA1, PGA0]

Gain settings are from the pin

PGAIN to pin PGAOUT (See

‘application diagram’)

8/26

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