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參數(shù)資料
| 型號(hào)： | HMP9701A |
| 廠商： | Intersil Corporation |
| 元件分類： | Codec |
| 英文描述： | AC’97 Audio Codec |
| 中文描述： | AC\u0026#39;97音頻編解碼器 |
| 文件頁(yè)數(shù)： | 20/20頁(yè) |
| 文件大?。?/td> | 172K |
| 代理商： | HMP9701A |
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Typical Application Schematic Notes
1. A note about the capacitors used for coupling externally
input audio or for outputting audio externally:
The capacitance value and the associated circuit imped-
ances will determine the lower frequency cutoff of the au-
dio signal. The designer must determine what the circuit
impedances are and select the coupling capacitor value
accordingly. Ceramic types (over electrolytic) are highly
recommended.
2. The crystal should be a parallel resonant type, frequency is
24.756MHz, initial room temperature tolerance of 50ppm,
and a load cap of about 16-20pF.
3. It is recommended to decouple each analog and digital
power supply pin with a combination of a small value and
large value bypass capacitor. The large value capacitor
should be either a tantalum or aluminum electrolytic type.
4. Locate all decoupling capacitors CLOSE to their associat-
ed pins on the codec.
5. Please note that all analog inputs and outputs of the
HMP9701A codec are at the DC level of V
REF
and re-
quire AC coupling to zero biased signal sources and
destinations.
6. Keep all analog input and output traces as short as
possible, prevent any coupling from adjacent digital lines.
7. For optimum performance, it is preferred to layout sepa-
rate analog and digital ground planes, joining them
together at a point directly adjacent to the codec (i.e., di-
rectly under it). This case is true even if the designer is
using a single supply for the codec; the single supply
should have adequate decoupling/isolation between the
digital and analog sections.
8. When using an external clock source, please feed that
signal into the XTL_IN pin and leave the XTL_OUT pin
unconnected. Also, do not use any capacitors between
XTL_IN and GND or XTL_OUT and GND in that mode.
HMP9701A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMP9701 | AC’97 Audio Codec |
| HMP9701ACN | AC’97 Audio Codec |
| HMP9701CN | AC’97 Audio Codec |
| HMP9701EVAL2 | AC’97 Audio Codec |
| HMPVIDEVALISA | NTSC/PAL Video Decoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMP9701ACN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP9701CN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP9701EVAL2 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:AC’97 Audio Codec |
| HM-PCB | 制造商:PacTec 功能描述:CASE HAND-HELD PC BONE |
| HMPE | 制造商:MERITEK 制造商全稱:MERITEK ELECTRONICS CORPORATION 功能描述:Hi-Voltage Metallized Polyester Film Capacitors |
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