TDA9901 datasheet(6/18 Pages) NXP

Part #	TDA9901

Description	Wideband differential digital controlled variable gain amplifier

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Manufacturer	NXP [NXP Semiconductors]

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TDA9901_4

Product data sheet

Rev. 04 — 14 August 2008

6 of 18

NXP Semiconductors

TDA9901

Wideband differential digital controlled variable gain ampliﬁer

11. Characteristics

Table 6.

Characteristics

VDDA = V11 to V12 = 4.75 V to 5.25 V; VDDD = V18 to V17 = 3.0 V to 5.25 V; VSSA and VSSD shorted together;

Tamb = −40 °C to +85 °C; typical values measured at VCCA = 5.0 V; VCCD = 3.3 V and Tamb =25 °C unless otherwise speciﬁed

[1].

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supplies

VDDA

analog supply voltage

4.75

5.0

5.25

V

VDDD

digital supply voltage

3.0

3.3

5.25

V

∆VDD

supply voltage difference

VDDA − VDDD

−0.2

-

+2.5

V

IDDA

analog supply current

-

30

36

mA

IDDD

digital supply current

-

3.0

5.0

mA

Ptot

total power dissipation

-

160

216

mW

Variable gain ampliﬁer transfer characteristics

B_3dB

−3 dB bandwidth

Vo(dif)(p-p) = 0.125 V;

Tamb =25 °C

110

130

-

MHz

td(grp)

group delay time

up to fi = 20 MHz; minimum

gain; Tamb =25 °C

-

2.5

-

ns

∆td(grp)

group delay time

variation

6 dB gain step;

Tamb =25 °C

-

300

ps

ts

settling time

10 % to 90 % maximum

output transition;

CL(max) = 5 pF on each

output; Tamb =25 °C

-

3.6

ns

Gstep

step of gain

DC input:

Tamb = 25 °C

5.88

6.09

6.28

dB

all temperatures

5.6

6.09

6.56

dB

Gmin

minimum gain

DC input:

Tamb = 25 °C

5.78

6.11

6.40

dB

all temperatures

5.7

6.11

6.46

dB

Gmax

maximum gain

DC input:

Tamb = 25 °C

29.9

30.5

30.9

dB

all temperatures

29.3

30.5

31.5

dB

∆G/∆T

gain variation with

temperature

minimum gain

-

−1.0

-

mdB/

°C

maximum gain

-

−7.5

-

mdB/

°C

∆G/∆VCC

gain variation with

supply voltage

minimum gain

-

15

25

mdB/V

∆Vi(offset)

offset input voltage

variation

6 dB gain step

-

0.8

-

mV

NF

noise ﬁgure

Rs = 100 Ω; fi = 20 MHz

minimum gain

-

29.1

-

dB

maximum gain

-

9.9

-

dB

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