compander with alc KA8512 1 k a 8 5 1 2 c h a r a c t e r i s t i c g r a p h 9 8 . 9 . 3 0 p r e p a r e d b y y . s p a r k ( l a w @ s e c . s a m s u n g . c o . k r ) a n a l o g l s i d i v i s i o n
KA8512 compander with alc 2 < vcc variable - expander output level > test condition : vcc = variable, f = 1khz, vin = 180mvrms (0db) signal source / test equipment : rohde & schwarz radio communication tester : cmt-84 < vcc variable - compressor output level > test condition : vcc = variable, f = 1khz, vin = 13mvrms (0db), mic amp gain : r = 9.1k, c = 0.47uf signal source / test equipment : rohde & schwarz radio communication tester : cmt-84
compander with alc KA8512 3 < vcc - frequency variable expander characteristics > test condition : vcc = 3v/5v, f = variable, vin = 180mvrms (0db) signal source / test equipment : rohde & schwarz radio communication tester : cmt-84 < vcc - frequency variable compressor characteristics > test condition : vcc = 3v/5v, f = variable, vin = 13mvrms (0db) signal source / test equipment : rohde & schwarz radio communication tester : cmt-84
KA8512 compander with alc 4 < expander input - output level, vcc = 3v > test condition : vcc = 3v, f = 1khz, vine = 180mvrms (0db), voute=130mvrms (0db) signal source / test equipment : rohde & schwarz radio communication tester : cmt-84 < expander input - output level, vcc = 5v > test condition : vcc = 5v, f = 1khz, vine = 180mvrms (0db), voute = 130mvrms(0db) signal source / test equipment : rohde & schwarz radio communication tester : cmt-84
compander with alc KA8512 5 < compressor input/output characteristics > < case 1 > ? test condition: vcc = 3.0v, vin = pin 8, vout = pin 12 mic amp gain: r = 9.1k, c = 0.47uf ? signal cource/ test equipment: pohde & schwarz radio communication tester, cmt-84 ? 0db point: input(0db): 13 mvrms, output (0db): 300mvrms 10 5 0 5 10 15 20 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 input (db) output (db) valc = 0.95v valc = 0.90v valc = 0.85v 30 25 20 15 10 5 0 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 input (db) thd (%)
KA8512 compander with alc 6 ? test condition: vcc = 3.0v, vin = pin 8, vout = pin12 mic amp gain: r = 68k, c = 0.47uf ? signal source/test equipment: rohde & schwarz radio communication tester, cmt-84 ? 0db in grap: input (0db): 13mvrms, output (0 db): 300mvrms 10 5 0 5 10 15 20 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 input (db) output (db) valc = 0.95v valc = 0.90v valc = 0.85v 30 25 20 15 10 5 0 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 input (db) thd (%) valc = 0.95v valc = 0.90v valc = 0.85v
compander with alc KA8512 7 ? test condition: vcc = 3.0v, vin = pin 8, vout = pin 12 mic amp gain: r = 9.1k, c = 0.001uf ? signal source/test equipment: rohde & schwarz radio communication tester, cmt-84 ? 0db in graph: input (0db) : 13mvrms, output (0db): 300mvrms 10 5 0 5 10 15 20 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 input (db) output (db) valc = 0.95v valc = 0.90v valc = 0.85v 30 25 20 15 10 5 0 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 input (db) thd (%) valc = 0.95v valc = 0.90v valc = 0.85v
KA8512 compander with alc 8 ? test condition: vcc = 3.0v, vin = pin 8, vout = pin 12 mic amp gain: variables, valc = 0.9v ? signal cource/test equipment: pohde & schwarz radio communication tester, cmt-84 ? reference point (0db point): input (0db): 13mvrms, output (0db): 300mvrms 10 5 0 -5 -10 -15 frequency range (hz) output gain (dbm) 600 1k 2k 3k 4k 5k 6k 8k 10khz r = 9.1k, c = 0.47uf r = 9.1k, c = 0.001uf r = 68k, c = 0.001uf
compander with alc KA8512 9 < expander input/output characteristics > ? test condition : vcc = 4v ? standard level : vin e= 180mvrms (0db), voute = 130mvrms (0db) < icc - vcc racteristics > ? test condition: vcc = 4 ~ 6v 0 1 2 3 4 5 6 7 2 3 4 5 6 voltage (v) current (ma)
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