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PDF TDA9901TS Data sheet ( Hoja de datos )
| Número de pieza | TDA9901TS | |
| Descripción | Wideband differential digital controlled variable gain amplifier | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA9901
Wideband differential digital
controlled variable gain amplifier
Product specification
Supersedes data of 1998 Apr 15
File under Integrated Circuits, IC02
1999 Oct 08
1 page  
Philips Semiconductors
Wideband differential digital controlled
variable gain amplifier
Product specification
TDA9901
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VDDA
VDDD
∆VDD
VI
IO
Tstg
Tamb
Tj
PARAMETER
analog supply voltage
digital supply voltage
supply voltage difference between VDDA and VDDD
input voltage level
output current
storage temperature
ambient temperature
junction temperature
MIN.
−0.3
−0.3
−1.0
−0.3
−
−55
−40
−
MAX.
+7.0
+7.0
+4.0
+7.0
10
+150
+85
150
UNIT
V
V
V
V
mA
°C
°C
°C
HANDLING
Inputs and outputs are protected against electrostatic discharges in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling integrated circuits.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth(j-a)
thermal resistance from junction to ambient
CONDITIONS
in free air
VALUE
120
UNIT
K/W
CHARACTERISTICS
VDDA = V11 to V12 = 4.75 to 5.25 V; VDDD = V18 to V17 = 3.0 to 5.25 V; VSSA and VSSD shorted together;
Tamb = −40 to +85 °C; typical values measured at VDDA = 5.0 V; VDDD = 3.3 V and Tamb = 25 °C; unless otherwise
specified; note 1.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
VDDA
VDDD
∆VDD
IDDA
IDDD
analog supply voltage
digital supply voltage
voltage difference
between VDDA and VDDD
analog supply current
digital supply current
4.75
3.0
−0.2
−
−
Variable gain amplifier transfer characteristics
B−3dB
td(g)
∆td(g)
−3 dB small signal
bandwidth
group delay time
group delay difference
Vo(dif)(p-p) = 0.125 V;
Tamb = 25 °C
up to fi = 20 MHz;
minimum gain;
Tamb = 25 °C
6 dB gain step;
Tamb = 25 °C
110
−
−
5.0
3.3
−
30
3.0
130
2.5
−
5.25
5.25
+2.5
36
5.0
−
−
300
V
V
V
mA
mA
MHz
ns
ps
1999 Oct 08
5
5 Page 
Philips Semiconductors
Wideband differential digital controlled
variable gain amplifier
Product specification
TDA9901
handbook, full pagewidth
FILTER
sine wave
generator
100 Ω
CMVGA 5
15 OUT 47 nF
IN 6
680 Ω
TDA9901TS
100
100 Ω
nF
680 Ω
INN 7
14 OUTN
47 nF
Vi 42
C1(1)
TDA8768
(ADC)
D0...11 12
Vi 43
C2(1)
dB
(2)
(3)
36
CLK
30 MHz
FCE306
(1) C1 and C2 represent the board line capacitance. They represent about 5 pF with the TDA8768 input capacitance. Special
care has to be taken to minimize this load in order to have the best dynamic performance.
(2) The HD2 and HD3 of the TDA8768 is lower than that measured on the TDA9901.This measurement method is preferred to
conventional methods due to its low contribution to the HD2.
(3) The chain measurement shows the harmonic distortion of the TDA9901 as the measurement from TDA8768 is negligible.
Fig.5 Dynamic distortion measurement diagram.
handbHoDok−,5h5alfpage
(dBc)
−60
FCE307
−65
−70
(1)
−75
(2)
−80
−85
10−1
1
10 f (MHz) 102
(1) HD3
(2) HD2
Typical condition; 2 V (p-p) differential output.
Fig.6 Harmonic distortion as a function of
frequency for minimum gain.
1999 Oct 08
handbHoDok−,5h5alfpage
(dBc)
−60
−65
FCE308
(1)
−70
(2)
−75
−80
−85
10−1
1
10 f (MHz) 102
(1) HD3
(2) HD2
Typical condition; 2 V (p-p) differential output.
Fig.7 Harmonic distortion as a function of
frequency for minimum gain plus 6 dB.
11
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| PDF Descargar | [ Datasheet TDA9901TS.PDF ] | |
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