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[寻求合作]音频传输模块,做出口

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安防幼儿园学生

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发表于 2007-5-27 20:29:37 | 显示全部楼层 |阅读模式

/ Q/ [, \# n- X7 F3 X 客户要求如下,如果哪家工厂可以做,请和我联系
* o1 s7 P7 y& u- G, t0 g8 @, [0 w> The application that we have in mind is similar to others that we commonly
5 V4 Y- K* D8 X! o7 ]: F# y > have. If we were to pay for FCC approval, we would want to use the modem
) s' q/ h% d$ k- Q4 h9 a4 w) N$ P- F> units in all similar applications under the same approval number.
; T6 g3 c0 G% D9 G2 w3 ^ > Therefore, we would like to be able to configure the units to a specific
% w$ E6 l, [2 K, x > application. For the business that we do, this approach will yield more
o% a- |; s" N6 @/ a > sales based on the same product and approval. We are interested in the
. }5 ^$ F, c: w/ c> following specifications:
. l# R" Z+ b& D! i9 ?8 m9 ^/ _3 ~ >
2 R x/ n1 ^3 ^ > - 2 inputs at the Transmitter with three possibilities;
* \; J5 L c9 R6 z9 F> 2 analog
5 s% n" @! k5 ` > 2 digital
+ c- y6 ]# {! q0 C2 h5 y8 l! Y> 1 analog and 1 digital
$ O0 J. A# o1 Q; S8 K; h2 e% N >
6 x9 _, P2 j5 \0 S/ o9 \4 X8 s > - 2 outputs at the Receiver with three possibilities to match inputs
3 l) r k4 T3 |, P6 `& i- f* f) g>
5 @5 P2 _5 j) h5 I, Y6 v > - Ability to configure/define analog Transmitter input ranges through
$ |. {- x8 v: i9 V9 u( w { > simple programming method to correspond with full-range analog Receiver
$ @- @) ?) |7 c+ t8 F: K/ a7 \> outputs (0 - full voltage).
' k" ?: R ^# Q+ L C2 A >
% j$ @) G! _: S- K- v q7 d2 M2 B> - Ability to configure and set sample rates for the inputs.
% c! X6 e/ t, \& _/ O >
% d r. M2 Y" X0 z/ w; f) I> - Digital output on Transmitter that turns on during the sampling period.
, K+ L) _, D3 D$ Q u7 a >
* }4 f2 Q d# ?7 X> - Ability to configure a power saving Sleep Mode in the Transmitter by
& M& C2 d+ |4 S% _* D( a" N > both software control and input hardware control.
% D5 }+ v1 P# k' ] >
2 I1 A: U" Z- Z$ f1 u" X4 d > In order to configure the units, we would need a way to make the
$ w$ p6 c+ L. e/ H! r0 D' x/ x > settings. This would preferably be from a computer terminal so that
$ I( S4 g$ ~5 \. Q$ Q> configurations can be saved or easily duplicated for production volumes.
; j; n8 ~* P" x; W! U' d- k6 }/ P( u> The units should be small and compact with shielding, and able to mount
) b y* C! U5 _% I1 k; _> to a printed circuit board with header connector.
3 U o! b4 P3 ^% f- v# D) I' p- ?: Y>
\; V) I) Q/ x% o6 h> At this time, we are interested in samples of a pair of modems that
- i |$ f1 U- I7 _7 p/ I+ q7 a > might be similar to this proposed system. We do not expect that you
: t5 [; ]4 R5 E" S> provide all of these specifications at this time. I can describe our
7 _6 T* g' Z0 z4 o: a> immediate application needs in the next email if this project is of
! v1 D& J, Z2 F> interest to you. Perhaps you can make the samples by those
( e# D; I- C$ C$ |0 r5 P8 p4 ]> specifications. This will allow us to test your radios before we move
3 F+ i7 X" I- K2 Z. @> forward. We are interested in your 900MHz radio to start.
' B9 X5 {5 i8 C m* G+ B
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