Dual channel 3W audio amplifier circuit
SJ2028 Ë«ÉùµÀ
¸ÅÊöÓëÌصã
SJ2028 ÊÇË« ÉùµÀÒôÆ ¸Ãµç· Ä ÌØ µãÈçÏ£º ¹¤×÷µçÔ´ µç ѹ·¶Î§ ª Æä Êä ³ö ¹¦ÂÊ´ó £º ¹¦ ÂÊ·Å´ó¼¯ ³É...
Description
SJ2028 Ë«ÉùµÀ
¸ÅÊöÓëÌصã
SJ2028 ÊÇË« ÉùµÀÒôÆ ¸Ãµç· Ä ÌØ µãÈçÏ£º ¹¤×÷µçÔ´ µç ѹ·¶Î§ ª Æä Êä ³ö ¹¦ÂÊ´ó £º ¹¦ ÂÊ·Å´ó¼¯ ³É µç·¡£
3W ÒôƵ¹¦·Å硪
SJ2028
5¡« 14V£» Pout = 2.5W (Type)
ÄÚº¬¹¤×÷ ²ÉÓôø ¢ ´ËÍ⣬ ü
(VCC = 9 V RL= 4Ω F = 1K Hz THD = 10%) Pout = 3.0W (Type) (VCC = 12V RL= 6Ω F = 1K Hz THD = 10%) Pout = 3.0W (Type) (VCC = 9V RL= 3Ω F = 1K Hz THD = 10%) /´ý »ú¿ª¹Ø£ È Æ¬µÄË«ÁÐ Ö± ²å 12 ½ÅËÜÁÏ ·â×°£¨ HDIP12£© ¡£ »¹ ¾ßÓÐÍâ½ Ôª ¼þÉÙ£¬ ù µÀ ·ÖÀë¶È¸ß £¬ ±¬Æ ÔëÉù
ÉÙ £¬µçѹÔö
Òæ ¿ÉÓ Íâ½
µç ×èµ÷½Ú È
ÌØ µã¡£
·½¿òͼÓëÒý³ö¶Ë¹¦ÄÜ
12 Vcc1 + + Vstb 1 2 3 TAB Pre-GND 4 11 10 TAB 9 8 7
5
6
Òý³ö¶Ë ÐòºÅ 1V 2 OU 3 B.S.1 TAB GND 4 Pr 5 6 ·ûºÅ
¹¦ÄÜ stb T1 Êä³ö¶Ë ×Ô¾Ù µØ e-GND Ç°ÖÃµØ ·´ÏòÊäÈë
+£©
Òý³ö¶Ë ÐòºÅ ´ý»ú 1 1 7 8 9 FIL TAB GND 10 B.S.2 ¶Ë ¶Ë 1 1 11 O 12 V ·ûºÅ
¹¦ÄÜ
+£©
IN2£¨ IN2£¨¡ª©
ÕýÏòÊäÈë ·´ÏòÊäÈë Â˲¨ µØ ×Ô¾Ù
¶Ë ¶Ë
2 2
2 2 µçÔ´
IN1£¨¡ª© IN1£¨
UT2
CC
Êä³ö¶Ë
ÕýÏòÊäÈë
page:1/7
http://www.Datasheet4U.com
SJ2028
×î´ó¶ ¨Öµ
£¨ ²ÎÊýÃû³Æ µçÔ´ ѹ Êä³ö·åÖµ ¹¦ºÄ ¹¤×÷ÎÂ¶È Öü´æÎÂ¶È µç Á÷ Tamb=25¡æ£© ·ûºÅ Vcc 20 Iop 2.5 PD 4 Topr Tstg -25¡« -55¡« +75 ¡æ ¡æ +150 ÊýÖµ µ¥Î» V A W
µçÌØÐÔ
£¨³ý·ÇÌرð˵Ã÷Í⬠²ÎÊýÃû³Æ ¾²Ì¬µçÁ÷ Êä³ö¹¦Â £¨Ã¿Ò»ÉùµÀ© ʧÕæ¶È ±Õ»·ÔöÒæ ÊäÈë×迹 Êä³öÔëÉù µçÔ´ÎƲ¨ ÒÖ Æ±È Í¨µÀ´®Òô ÊäÈë §µ÷ ´ý»úµçÁ÷
VCC=9V£¬ ·ûºÅ Iccq V Po THD Gv Zi VN0 RR CT µç ѹ V7-8 ISBY
Rg=600¦¸£¬ ²âÊÔÌõ¼þ in=0
f=1kHz£¬
Tamb=25¡æ£© ×îС µäÐÍ 21 2.0 2.5 ×î´ó 45 µ¥Î» mA W 1.0 45 56.5 30 0.3 52 50 30 1 60 ¦Ì 1.0 k¦¸ mV dB dB mV A 47 % dB
THD=10%£¬
RL=4¦¸ RL=6¦¸ £©
VCC=12V , THD...
Similar Datasheet