TDA8578 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
TDA8578
AC CHARACTERISTICS
V_CC = 8.5 V; f = 1 kHz; T_amb = 25 °C; in accordance with test circuit (see Fig.3); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
G_v
α_cs
∆G_v
voltage gain
channel separation
channel unbalance
R_s = 5 kΩ
−0.5
0
70
80
−
−
+0.5
dB
−
dB
0.5
dB
f_L
low frequency roll-off
f_H
high frequency roll-off
Z_i
input impedance
−1 dB; note 1
−1 dB
20
−
−
Hz
20
−
−
kHz
100
240
−
kΩ
Z_o
V_i(max)
V_no
output impedance
maximum input voltage
noise output voltage
THD = 1%
R_s = 0 Ω; note 2
−
−
10
Ω
−
2
−
V
−
3.7
5
µV
V_CM(rms)
common-mode input voltage
(RMS value)
−
−
1
V
CMRR
SVRR
common-mode rejection ratio
supply voltage ripple rejection
R_s = 5 kΩ
R_s = 0 Ω; note 3
note 4
66
70
−
dB
−
80
−
dB
55
65
−
dB
note 5
−
60
−
dB
THD
total harmonic distortion
V_i = 1 V
−
V_i = 1 V;
−
f = 20 Hz to 20 kHz
0.02
−
%
−
0.1
%
THD_max total harmonic distortion at
V_i = 1 V; R_L = 150 Ω
−
−
1
%
maximum output current
Notes
1. Frequency response externally fixed by the input coupling capacitors.
2. Noise output voltage is measured in a bandwidth of 20 Hz to 20 kHz (unweighted).
3. The common-mode rejection ratio is measured at the output, with a voltage source of 1 V (RMS), in accordance with
test circuit (see Fig.3), while V_INL and V_INR are short-circuited. Frequencies between 100 Hz and 100 kHz.
4. Ripple rejection is measured at the output, with R_s = 2 kΩ; f = 1 kHz and a ripple amplitude of 2 V (p-p).
5. Ripple rejection is measured at the output, with R_s = 0 Ω up to 2 kΩ and f = 100 Hz to 20 kHz; maximum ripple
amplitude of 2 V (p-p).
1995 Dec 15
5