No. 6271-2/20
LC75342, 75342M
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter Symbol Pin Conditions Ratings Unit
min typ max
Supply voltage VDD VDD 4.5 10 V
High-level input voltage VIH CL, DI, CE 2.7 10 V
Low-level input voltage VIL CL, DI, CE 7.5 ≤VDD ≤10.0 VSS 1.0 V
4.5 ≤VDD < 7.5 VSS 0.8
Input voltage amplitude VIN CE, DI, CL, L1 to L4, VSS VDD Vp-p
R1 to R4, LIN, RIN
Input pulse width tøW CL 1 µs
Setup time tsetup CL, DI, CE 1 µs
Hold time thold CL, DI, CE 1 µs
Operating frequency fopg CL 500 kHz
Allowable Operating Ranges at Ta = –30 to +75°C, VSS = 0 V
Parameter Symbol Pin Conditions Ratings Unit
min typ max
Input resistance Rin LIN, RIN 50 kΩ
Volume Control Block
Parameter Symbol Pin Conditions Ratings Unit
min typ max
Control range Geq max.boost ±18 ±20 ±22 dB
Step resolution Estep 1 2 3 dB
Internal feedback resistance Rfeed 66.6 kΩ
Bass Band Equalizer Control Block
Parameter Symbol Pin Conditions Ratings Unit
min typ max
Control range Geq max.boost/cut ±8 ±10 ±12 dB
Step resolution Estep 1 2 3 dB
Internal feedback resistance Rfeed 51.7 kΩ
Treble Band Equalizer Control Block
Parameter Symbol Pin Conditions Ratings Unit
min typ max
Maximum input gain Gin max +30 dB
Step resolution Gstep +2 dB
Input resistance Rin L1, L2, L3, L4 50 kΩ
R1, R2, R3, R4
Clipping level Vcl LSEL0, RSEL0 THD = 1.0%, f = 1 kHz 2.90 Vrms
Output load resistance Rl LSEL0, RSEL0 10 kΩ
Electrical Characteristics at Ta = 25°C, VDD = 9 V, VSS = 0 V
Input Block
Parameter Symbol Pin Conditions Ratings Unit
Maximum supply voltage VDD max VDD 11 V
Maximum input voltage VIN max CE, DI, CL, L1 to L4, VSS – 0.3 to VDD + 0.3 V
R1 to R4, LIN, RIN
Ta ≤75°C LC75342 450
Allowable power dissipation Pdmax Ta ≤75°C LC75342M 450 mW
with a PCB*
Operating temperature Topr –30 to +75 °C
Storage temperature Tstg –40 to +125 °C
Note: *Printed circuit board size: 76.1 ×114.3 ×1.6 mm, printed circuit board material: glass/epoxy resin