NJU7370

The NJU7370 is a 8 * 32  analog cross point switch which  consists of a  8 * 32 analog switch array, an address decoder and a latch circuit.ON(short mode) or OFF(open mode) of 256 points in a 8 * 32 switch array are easily controlled by setting the address.The power supplies of NJU7370 for the  logic block and for the switch block are separated, therefore the supply  voltage  for the  switches  can  be  adjusted corresponding to the input signal level.The  small tolerance  of the  on-resistance  of the switches  causes to be  suitable  for  a small  input selector of audio appliances or other appliances.

Features of the NJU7370 are:(1)8 X 32 analog switches array; (2)low on-resistance of switches:100 MAX(Vee-Vss=10V); (3)tolerance of on-resistance:20 MAX; (4)low distortion  (T.H.D):0.01% TYP; (5)address decoder and latch circuits on chip; (6)wide operating voltage range:Vdd-Vss=6V(logic block); (7)Vdd-Vee=11V(switch block); (8)low operating current:1A MAX(Vin=Vdd or Vin=Vss); (9)package outline:QFP64; (10)C-MOS technology.Analog data are loaded when each input signal condition to  CS and STB terminals is  High level,and  their data  are latched  when an input signal  to STB terminal falls from High to Low. The condition of a switch becomes  ON  when the latched data is High, and it becomes OFF when the latched data is Low. When the input signal condition to RST terminal is High, the latch circuits are reset and all switches become OFF.

The absolute maximum ratings of the NJU7370 can be summarized as:(1)supply voltage:-0.3 to +14.0V;(2)storage temperature range:-40 to +125;(3)operating junction temperature:-25 to +75;(4)analog input voltage:Vee-0.3 to Vdd+0.3V;(5)digital input voltage:Vee-0.3 to Vdd+0.3V;(6)input current:±15mA;(7)power disspation:300mW.The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite).