LC7535

The LC7535 is a kind of two-channel eletronic attenuator for volume, balance and loudness controls in stereo audio applications. The device reads data from a three-line serial bus to control attenuation in 1 dB steps over an 80 dB range, up to a maximum of 98 dB. Besides, it is available in 22-pin DIP.

There are some features as follows: (1)three-line serial control; (2)two device select; (3)tap at 20 dB attenuation for a loudness control; (4)75 dB crosstalk rejection; (5)0.011% total harmonic distortion; (6)47k input impedance; (7)5 V and ±16 V supplies.

The following is about the absolute maximum ratings: (1)supply voltage, VDD: 0 to 18 V; (2)supply voltage, VEE: -18 to 0 V; (3)supply voltage, VCC: 0 to 7 V; (4)CLK, DI and CE input voltage range, V11: 0 to VCC+0.3 V; (5)analog input voltage range, V12: VEE-0.2 to VDD+0.3 V; (6)select pin input voltage range, V13: VCC-0.2 to VDD+0.3 V; (7)power dissipation, PD: 250 mW; (8)operating temperature range, Topr: -30 to 75; (9)storage temperature range, Tstg: -40 to +125.