NTE799 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Four Channel “SQ” Decoder

NTE799
Integrated Circuit
Four Channel “SQ” Decoder
Description:
The NTE799 consists of two high input impedance preamplifiers which are fed with left total, L_T, and
right total, R_T signals. The preamplifiers each feed two all–phase networks which generate two L_T
signals in quadrature and two R_T signals in quadrature. The four signals are matrixed to yield left front,
left back, right front, and right back signals (L_F, L_B, R_F, R_B).
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Power Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Power Dissipation (T_A = +25°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW
Derate Above +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.7mW/°C
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (V_CC = +20V, V_in = 0.5V_(RMS) @ 1kHz, T_A = +25°C unless otherwise
specified)
Parameter
Min Typ Max Unit
Supply Current Drain
11
16
21
mA
Input Impedance
1.8
3.0
–
mΩ
Output Impedance
–
5.0
–
kΩ
Channel Balance (L_F/R_F)
Voltage Gain L_F/L_T or R_F/R_T
Relative Voltage Gain L_B’/L_F’ or R_F/R_T
Maximum Input Voltage for 1% THD at Output R_T or L_T
–1.0
0
+1.0
dB
–1.0
0
+1.0
dB
–1.0
0
+1.0
dB
2.0
–
–
V_(RMS)
Total Harmonic Distortion R_T or L_T
–
0.1
–
%
Signal to Noise Ratio (Short–Circuit Input V_O = 0.5V_(RMS) with Output Noise
Referenced to Output Voltage, V_O) (BW = 20Hz to 20kHz)
–
80
–
dB