TDA8579 Datasheet, PDF (5/13 Pages) NXP Semiconductors – Dual common-mode rejection differential line receiver

Philips Semiconductors
Dual common-mode rejection
differential line receiver
Product specification
TDA8579
CHARACTERISTICS
V_CC = 8.5 V; T_amb = 25 °C; f = 1 kHz; measured in test circuit of Fig.3; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX.
V_CC
I_CC
V_O
t_set
G_v
α_cs
∆G_v
f_L
f_H
Z_i
Z_o
V_i(max)
V_no
V_CM(rms)
CMRR
SVRR
THD
THD_max
supply voltage
5.0
8.5
18
supply current
−
11
14
DC output voltage
note 1
−
4.3
−
DC input voltage settling time
−
0.2
−
voltage gain
−0.5
0
+0.5
channel separation
R_s = 5 kΩ
70
80
−
channel unbalance
−
−
0.5
low frequency roll-off
−1 dB; note 2
20
−
−
high frequency roll-off
−1 dB
20
−
−
input impedance
100
240
−
output impedance
−
−
10
maximum input voltage
THD = 1%
−
2.0
−
noise output voltage
R_s = 0 Ω; note 3
−
3.7
5.0
common-mode input voltage
−
−
1.0
(RMS value)
common-mode rejection ratio
R_s = 5 kΩ
R_s = 0 Ω; note 4
66
70
−
−
80
−
supply voltage ripple rejection note 5
55
65
−
note 6
−
60
−
total harmonic distortion
V_i = 1 V;
−
0.02
−
V_i = 1 V;
−
−
0.1
f = 20 Hz to 20 kHz
total harmonic distortion at
V_i = 1 V; R_L = 150 Ω
−
−
1
maximum output current
UNIT
V
mA
V
s
dB
dB
dB
Hz
kHz
kΩ
Ω
V
µV
V
dB
dB
dB
dB
%
%
%
Notes
1. The DC output voltage with respect to ground is approximately 0.5V_CC.
2. The frequency response is externally fixed by the input coupling capacitors.
3. The noise output voltage is measured in a bandwidth of 20 Hz to 20 kHz (unweighted).
4. The common-mode rejection ratio is measured at the output with a voltage source 1 V (RMS) in accordance with the
test circuit (see Fig.3) while V_INL and V_INR are short-circuited. Frequencies between 100 Hz and 100 kHz.
5. The ripple rejection is measured at the output, with R_s = 2 kΩ, f = 1 kHz and a ripple amplitude of 2 V (p-p).
6. The ripple rejection is measured at the output, with R_s = 0 to 2 kΩ, f = 100 Hz to 20 kHz and a maximum ripple
amplitude of 2 V (p-p).
1995 Dec 15
5