NXP Semiconductors
TDA9901
Wideband differential digital controlled variable gain amplifier
Table 6. Characteristics …continued
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
Vn(o)(eq)
equivalent output noise Rs = 100 Ω; fi = 20 MHz; Tamb = 25 °C
voltage
G = 6 dB
-
75
-
nV/√Hz
G = 12 dB
-
82
-
nV/√Hz
G = 18 dB
-
97
-
nV/√Hz
G = 24 dB
-
91
-
nV/√Hz
G = 30 dB
-
124
-
nV/√Hz
PSRR
power supply rejection minimum gain; VDDA
ratio
0 MHz to 20 MHz
-
57
-
dB
20 MHz to 100 MHz
-
39
-
dB
minimum gain; VDDD
0 MHz to 20 MHz
-
67
-
dB
20 MHz to 100 MHz
-
51
-
dB
CMRR
common mode rejection 0 MHz to 20 MHz
-
75
-
dB
ratio
20 MHz to 100 MHz
-
45
-
dB
Analog inputs
Vi(p-p)(max)
maximum peak-to-peak minimum gain
input voltage
maximum gain
-
1.0
-
V
-
60.4
-
mV
Vi(cm)
common-mode input
voltage
2.0
2.7
VDDA − 1.9 V
Ii
input current
Ri
input resistance
Ci
input capacitance
Analog outputs[2]
Vi(cm) = 2.7 V
-
55
-
µA
10
-
-
kΩ
-
-
5
pF
Vo(dif)(p-p)max maximum peak-to-peak
differential output
voltage
maximum gain
minimum gain
2.0
-
-
V
2.0
-
-
V
VO(cm)
∆VO(cm)/∆T
common-mode output
voltage
common-mode output
voltage variation with
temperature
referenced to VDDA;
Tamb = 25 °C
VDDA − 2.56 VDDA − 2.42 VDDA − 2.29 V
-
−1.8
-
mV/°C
SRse
single-ended slew rate
-
275
-
Ro
output resistance
-
15
26
Co
output capacitance
-
3
-
Variable gain amplifier dynamic performance; CL = 5 pF; RL = 680 Ω; see Figure 6, 7, 8, 9 and 10
α2H
second harmonic level Vo = Vo(max)
fi = 0.5 MHz
-
−80
−67
fi = 4.43 MHz
-
−77
−67
fi = 12.5 MHz
-
−76
−65
fi = 21.4 MHz
-
−74
−62
V/µs
Ω
pF
dBc
dBc
dBc
dBc
TDA9901_4
Product data sheet
Rev. 04 — 14 August 2008
© NXP B.V. 2008. All rights reserved.
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