LB1409

Ordering number: EN683D Monolithic Digital IC LB1409 Level Meter Driver for 9 LEDs Applications Package Dimensions unit : mm . AC level meters such as VU meters. . DC level meters such as signal meters. Functions 3064-DIP16 [LB1409] . Display Nine red or green LEDs display the input level in the shape of a bar. . Input amplifier Wide application is available owing to built-in DC amplifier whose gain is variable with external resistors. . Comparator level Setting is made by steps of 3 dB as follows. –18 dB, –15 dB, –12 dB, –9 dB, –6 dB, –3 dB, 0 dB, +3 dB, +6 dB SANYO : DIP16 . Supply voltage The recommended supply voltage range is so wide as 5.5 V to 16 V. (If pin Vref 2 is used, 7 V to 16 V.) . Reference voltage Constant voltage output is available with external transistor owing to pin Vref 2 = 5 V. Specifications Comparator Level OUT Pin Voltage at Ta = 25°C, VCC = 12 V, Vref 1 = 3 V Comparator level D1 D2 D3 D4 D5 D6 D7 D8 D9 Pin No. 7 8 9 10 11 12 13 14 15 min 0.11 0.20 0.30 0.45 0.66 0.97 1.40 2.02 2.90 typ 0.18* 0.27* 0.38* 0.53* 0.75 1.06 1.50 2.12 3.00 max 0.25 0.34 0.46 0.61 0.84 1.15 1.60 2.22 3.10 Unit V V V V V V V V V *: No overlap occurs in each individual IC. SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 53096HA(II)/8237KI/8205MW/7140KI,TS No.683-1/4 LB1409 Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Input voltage D1 to D9 output vo...