поискавой системы для электроныых деталей |
|
BA7725 датащи(PDF) 6 Page - Rohm |
|
BA7725 датащи(HTML) 6 Page - Rohm |
6 / 8 page 6 Multimedia ICs BA7725S / BA7725FS •Measurement circuit BF BF VR VR SW EXPAND 12345 789 10 11 6 17 12 13 14 15 16 18 19 20 21 22 V4 V6 + + R17 C15 R13 C14 R16 C18 R34 1k C33 R11 C10 R8 + + + COMPRESS 0.1 µ MIC AMP IN R2 2.2k R3 82k C1 1 µ C4 22 µ C5 0.1 µ C6 0.47 µ C32 0.1 µ R35 10k DLY BF IN CMP BF OUT + C30 2.2 µ C20 0.1 µ R31 10k R33 1k LINE OUT LINE IN C20 0.1 µ C19 0.47 µ + + VCC 9V Fig.1 The above measurement circuit applies to a BA7725S mount- ed to a 22-pin SDIP package. A BA7725FS mounted to a 20- pin SSOP-A package lacks N.C. pins 3 and 20; other than this difference, the above circuit diagram applies. •Circuit operation (1) MIC AMP IN / LINE OUT gain Microphone amplifier gain (determined by R9 and R10) + line amplifier gain (+12dB) The audio signal is input via pin 22 (BA7725S) or pin 20 (BA7725FS) and amplified by the internal microphone amplifi- er, whose gain can be set with (attached) R9 and R10. Note: Microphone amplifier gain must be set above +15dB. Microphone amplifier frequency characteristic measurement circuit – + Fig.2 1.5k 12k 22 21 BA7725S Vout VIN 60 50 40 30 20 10 0 – 10 –20 –30 – 40 1M 10M 24 6 8 1 1 8 6 4 21 8 6 4 2 Open loop gain 10k 100k Frequency characteristic (Hz) Microphone amplifier frequency characteristics Fig.3 ++ + + 18dB + Fig.4 2 1 21 22 MIC AMP IN R9 R10 SW LINE OUT LINE IN |
Аналогичный номер детали - BA7725 |
|
Аналогичное описание - BA7725 |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |