ÄÚ½º¸ð½º APU
»ç¾ç: Àåºñ »ç¿ë¹ý: Cosmos ¾Æ³¯·Î±× ó¸® ÀåÄ¡ ¾Æ³¯·Î±× ½ÅÈ£ ó¸® ÀåÄ¡, ´ÜÀÏ Ã¤³Î ÀåÄ¡ Cosmos ADC ¿ë ½´ÆÛ ¼º´É THD + N ¹× ³ëÀÌÁî/DR ÃøÁ¤ µµ±¸ (±â´É¿¡´Â ÆÒÅÒ ÆÄ¿ö, ÇÁ¸® ¾ÚÇÁ, ³ëÄ¡ ÇÊÅÍ) Àç·á: »÷µå ºí¶ó½ºÆÃ/ºí·¢ ¾ç±Ø »êÈ ¾Ë·ç¹Ì´½/·¹ÀÌÀú ¸¶Å·/THAT1510/OPA1612/RT6863S ¹ÙÀÌÅ· ÀúÇ×±â, ¹«¶óŸ, TDK, ELNA Ä¿ÆнÃÅÍ, ´ë¸¸ Ä¿³ØÅÍ/½ºÀ§Ä¡ USB-C + 5V ·¹ÀÏ, 350mA Á¤Áö Àü·ù, ±ÇÀå Àý¿¬ Àü¿ø °ø±Þ ÀåÄ¡ (ÃæÀü±â, º¸Á¶ ¹èÅ͸®> 600mA)
ÀÔ·Â: 3.5mm Àè TRRS ÇɾƿôÀ» + In/-In/GND/GND·Î °¢°¢
³ëÄ¡: ±ÕÇü ÀâÈù (FDA) ÃÖ´ë 10Vrms (È°¼º Ŭ·¥ÇÁ´Â 15Vpeak)
À̵æ = 20db + 0/6db (Àüȯ °¡´É), Zi = 20/10kohm bal/unbal
³ëÄ¡ ºñÀ² = -30db ¿¡¼ 1kHz ¶Ç´Â 10kHz (Àüȯ °¡´É)
ÀÜ·ù ³ëÀÌÁî 950nVrms(A) ÀÏ¹Ý (°ÔÀÎ 20 + 6db, Fnotch = 1kHz)
ÀÜ¿© ¿Ö°î: @ 1kHz@4.5Vrms 2nd/3rd <-150db/-150db
@ 1kHz @ 9Vrms 2 Â÷/3 Â÷ <-150db/-160db
@ 10kHz@4.5Vrms 2 Â÷/3 Â÷ <-130db/-130db
ÀÜ¿© THD + N BW20-20k @ 1kHz @ 9Vrms <-131db ¹«°¡Áß
(½ÇÁ¦·Î DAC + LPF ¼Ò½º·Î ´Þ¼º)
@ 1kHz@4.5Vrms <-127db ¹«°¡Áß
(½ÇÁ¦·Î DAC + LPF ¼Ò½º·Î ´Þ¼º)
ÇÁ¸®¾ÚÇÁ:
±ÕÇü ÀâÈù (FDA) ÃÖ´ë 3.5Vrms(10oHm ¿¡¼ TVS Ŭ·¥ÇÁ±îÁö!), À̵æ = 34/60db
Zi = 47/23.5k bal/unbal, 100pF ÀÔ·Â Ä¿ÆнÃÅϽº Æ÷³ë ÇÁ¸® ¾ÚÇÁ·Î »ç¿ëÇÒ ¼ö ÀÖÀ½
RIAA º¸Á¤ÀÌ ¾øÀ¸¸é µðÁöÅÐ µµ¸ÞÀο¡ Á¤È®ÇÏ°Ô Àû¿ëµË´Ï´Ù.
+ 60db °ÔÀο¡¼ ÀϹÝÀûÀÎ ÀÜ·ù ³ëÀÌÁî <140nVrms(A) ¶Ç´Â + 34db °ÔÀο¡¼ <280nVrms(A)
°è´Ü½Ä ÇÁ¸® ¾ÚÇÁ¿¡¼ ½ÇÁ¦·Î ´Þ¼º µÈ µ¿Àû ¹üÀ§ AES17-> ³ëÄ¡
@ 1kHz -60dbfs(10mVrms) >153db(A), @ 1kHz -60dbfs(5mVrms) >148db(A)
¸¸ÀÏÀÇ °æ¿ì¸¦ ´ëºñÇÏ¿© ÇÁ¸®¾ÚÇÁ ÀԷ¿¡´Â ³»ºÎ Àú¼ÒÀ½ ÆÒÅÒ Àü¿øÀÌ 48VDC +/-4V
Äܵ§¼ ¸¶ÀÌÅ© (³ëÀ̸¸, AKG, Rode µî) ¿Í ÇÔ²² »ç¿ëÇϱâÀ§ÇÑ 2x6.8kOhm.
¸¶ÀÌÅ©¸¦ ¿¬°áÇÏÁö ¾ÊÀº »óÅ¿¡¼ Àü¿øÀ» ÄÑÁö ¸¶½Ê½Ã¿À. ¼Õ»ó µÉ ¼ö ÀÖ½À´Ï´Ù.
APUÀÇ ÇÁ¸® ¾ÚÇÁ ÀԷ¿¡ ¿¬°áµÈ ÀåÄ¡! Àû¾îµµ 10s ÈÄ¿¡ ±â´Ù·ÁÁֽʽÿÀ.
ÆÒÅÒ Àü¿øÀÌ ²¨Á® ÀÖ¾î ÇÁ¸®¾ÚÇÁ¿¡ ¸ðµç °ÍÀ» ¾ÈÀüÇÏ°Ô ¿¬°á/ºÐ¸®ÇÒ ¼ö ÀÖ½À´Ï´Ù.
ÀÔ·Â:
Ãâ·Â: + Ãâ·Â/GND/GND/GND·Î 3.5mm Àè TRRS ÇÉ Ãâ·Â
°¢°¢ 10Vrms, Zo = 47ohm ±îÁö ºÒ±ÕÇü
ÁÖÆļö ÀÀ´ä:
³ëÄ¡: 5Hz-200 + kHz Fnotch = 1k
0db ´Â 50Hz 1kHz -30db, 2kHz -0.5 ..-0.6db, 3kHz -0.2db
ÇÁ¸® ¾ÚÇÁ: 10Hz-1MHz + -3db @ 60db À̵æ, 10Hz-5MHz + -3db @ 34db À̵æ
°ü·Ã Æò°¡:
https://www.l7audiolab.com/f/e1da-cosmos-apu-2/
https://archimago.blogspot.com/2022/05/early-look-cosmos-apu-high-performance.html
![](https://ae01.alicdn.com/kf/S05ceb83f409f46f6a2adcf131adedef6g.jpg)
![](https://ae01.alicdn.com/kf/S223593c1a1104449a2427de8688d5940W.jpg)