TDA9901 datasheet(7/20 Pages) PHILIPS

7 / 20 page

1999 Oct 08

Philips Semiconductors

Product speciﬁcation

Wideband differential digital controlled

variable gain ampliﬁer

TDA9901

Analog inputs

Vi(max)(p-p)

maximum input voltage

(peak-to-peak value)

minimum gain

−

1.0

−

maximum gain

−

60.4

−

Vi(cm)

common mode input

voltage

2.0

2.7

VDDA − 1.9

input current

Vi(cm) = 2.7 V

−

−µA

input resistance

−−

Ω

input capacitance

−−

5pF

Analog outputs; note 2

Vo(max)(p-p)

maximum differential

output voltage

(peak-to-peak value)

maximum gain

2.0

−−

minimum gain

2.0

−−

Vo(cm)

common mode output

voltage

referenced to VDDA;

Tamb =25 °C

VDDA − 2.56 VDDA − 2.42 VDDA − 2.29 V

∆V

o(cm)/∆T

common mode output

voltage variation with

temperature

−−1.8

−

mV/

°C

SRo(se)

single-ended output slew

rate

−

275

−

µs

output resistance

−

Ω

output capacitance

−

Variable gain ampliﬁer dynamic performance; CL = 5 pF; RL = 680 Ω (see Figs 6, 7, 8, 9 and 10)

HD2

2nd harmonic distortion

Vo =Vo(max)

fi = 0.5 MHz

−−80

−67

dBc

fi = 4.43 MHz

−−77

−67

dBc

fi = 12.5 MHz

−−76

−65

dBc

fi = 21.4 MHz

−−74

−62

dBc

HD3

3rd harmonic distortion

Vo =Vo(max);

Tamb =25 °C

fi = 0.5 MHz

−−64

−60

dBc

fi = 4.43 MHz

−−64

−59

dBc

fi = 12.5 MHz

−−62

−58

dBc

fi = 21.4 MHz

−−61

−57

dBc

∆HD

3/∆T

3rd harmonic distortion

variation with temperature

fi = 21.4 MHz

−

mdB/

°C

Reference voltage output ADC: pin CMADC

Vref(CMADC)

ADC reference output

voltage

referenced to VDDA;

Tamb =25 °C

VDDA − 1.64 VDDA − 1.45 VDDA − 1.26 V

Ro(CMADC)

output resistance

Tamb =25 °C

−

Ω

∆V

ref(CMADC)/∆T

ADC reference output

voltage variation with

temperature

−−0.11

−

mV/

°C

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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