- #26 [254mm], 16-12-24 16:542604 can work on +/-24 Volts DC whilst most of other ICs CANNOT!!
- #25 [254mm], 16-12-24 16:53first, do you know how to measure the supply voltage +/-?
- #24 [klou], 16-12-24 16:47I am using Opera CD 2.2
But it has 3 OPA2604 inside and 2 unknown IC called AD T634.
If I want to change the Op Amp, do I need to replace all 3 OPA2604? -
- #23 [klou], 16-12-24 16:33I am using Opera CD2.2, it has 3 OPA2604, do I need to change it all?
there are 2 AD T634 IC on the analogue output board, what are they.
any ching can help? - #22 [254mm], 16-05-31 08:15有時廠家怎會輕易对 d 散客講真話,尤其答話的,也只是普通行政人員,佢自己也未必清楚全公司運作,ti 各地咁多分廠,難保有出过 ceramic 也未定,有时,真是盡信書不如無書。
- #21 [254mm], 16-05-30 08:56OPA2604 +/- 24 V, 肯定得, PDF file clearly stated. 至於陶瓷, 就不知何來, 因若要做 A 貨, 都要找到能承受 +/- 24 V 的 IC 芯, 再啤陶瓷, 及鐳射印面, 不知有可為否?
- #20 [spyder], 16-05-30 08:06換Op amp 其實係整體提升定只係改變呢?
一直搞不好,請師兄們不吝指教。
謝~ - #19 [Bubble], 16-05-30 02:20關於塑膠封裝的 OPA2604,我發過 email 問 TI,他們的官方回覆是並沒有陶瓷封裝的。而 OPA2604 的官方資料,最高操作電壓只有±22V。
另外 DAC 的輸出有 I/V converter 及 Low pass filter,Low pass filter 可試試不同的 generic / audio OPAMP,應該沒有大問題,但 I/V 部份廠家在設計時定必把 opamp 參數計算在內,隨便換的話,破壞性往往大於建設性,所以並無必要一見到 NE5532 便除之而後快!
AD827 是 Video OPAMP,速度快,但用在音響線路有機會發生鈴震。 - #18 [零號機], 15-01-26 22:33MUSE 02 用在我部陳年山靈SACD機SACD輸岀部位聽得很開心,而CD輸出部位就用上LME49720已比OPA2604AP靚聲多了。圖中嘅MUSE 02 就留嚟日後升級用開的DAC到。
- #16 [batmanamesIA], 15-01-26 10:07
- #15 [batmanamesIA], 15-01-26 05:04思鋒工作室有LME4972O及其opamp出售85235832873
- #14 [kit271], 15-01-24 12:56For safety and reasonable price, recommend LME49720
- #13 [254mm], 15-01-23 14:19用电表度4,8 或4,7脚,你連RS 都唔識, Google 吧!
- #12 [johnmr], 15-01-23 12:55254mm ching, 請問係邊度睇到架機IC供電係幾多??另外自己買OPAMP需要注意D 咩數值?
哈哈有有RS 地址??^_- - #11 [254mm], 15-01-23 11:10我用正美制造陶瓷 2604, 冇法, 架機 IC 供電, +/- 24 Volts, 弟D Op-amp IC 頂唔到咁高電壓
- #10 [254mm], 15-01-23 10:47幾十, RS 價, Z 好多時是 surface mount
- #9 [patkwok], 15-01-23 10:28我想問下一般AD797ANZ大概正常價錢是多少?
- #8 [41450686], 15-01-23 10:23在香港,大陸買了好多假野後, 現在找到一些相熟鋪
- #7 [patkwok], 15-01-23 10:08大家一般會係邊到買opamp呢?
- #6 [41450686], 15-01-22 21:02玩opamp貴過玩膽,冇鐵殼都唔好玩
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