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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

" T$ Y$ W. b. D$ e- m 客户要求如下,如果哪家工厂可以做,请和我联系
7 Y, l% z7 s8 Q > The application that we have in mind is similar to others that we commonly
' d7 Y# q1 @% _, i- f2 A7 [> have. If we were to pay for FCC approval, we would want to use the modem
P6 ]0 O) ]% w0 G! M' f7 v/ A; k; V > units in all similar applications under the same approval number.
1 N8 _# [3 L. Z/ U> Therefore, we would like to be able to configure the units to a specific
$ J+ Q0 u/ \) P! z8 z > application. For the business that we do, this approach will yield more
U5 w v6 ?& _! W/ U0 v( `/ X d* K> sales based on the same product and approval. We are interested in the
9 i0 q; w) K* R > following specifications:
7 s" u: L0 b2 {8 [9 J7 ]( h/ N$ I>
8 b9 |. i1 X5 g, f% E7 ~: @' V > - 2 inputs at the Transmitter with three possibilities;
_2 I/ J- i2 c% \ > 2 analog
/ s, Y7 p- a& u2 J y9 ` > 2 digital
6 c/ {/ S; b* X4 Y' R5 [ > 1 analog and 1 digital
/ ]' n3 N, T) o* N9 n! |! M* S, I >
5 f% v$ O" J* b > - 2 outputs at the Receiver with three possibilities to match inputs
- r( B9 d' |- I3 D>
6 h" l/ g) Z. }- a& m" d > - Ability to configure/define analog Transmitter input ranges through
2 c7 [* X3 a2 \> simple programming method to correspond with full-range analog Receiver
( K6 h8 [% h- y5 P+ \0 c4 D# ? > outputs (0 - full voltage).
9 Q. h: ?/ u8 y# m& G, U9 |# b; S( ~7 E>
2 R( f Z: o$ k& M3 q > - Ability to configure and set sample rates for the inputs.
/ h' t9 h% ?7 p* l6 B3 W0 \. e >
8 K C( c* h+ Q. m, D0 s! F/ m> - Digital output on Transmitter that turns on during the sampling period.
+ ?, J. B2 B* [' Z>
) b. I% h* b \8 F" Y8 G1 s. {> - Ability to configure a power saving Sleep Mode in the Transmitter by
- I- g, a% Y; P > both software control and input hardware control.
: _% d# O: g% y >
( B2 ~& [) x- q6 Q9 Y; I1 E9 ` > In order to configure the units, we would need a way to make the
% U7 X8 s1 ]6 D) i$ ?1 m: z# r9 G> settings. This would preferably be from a computer terminal so that
6 j, j v- e. _" D# ^! Q- n7 h+ H( e > configurations can be saved or easily duplicated for production volumes.
4 K! B( f! ?& `+ ~4 U> The units should be small and compact with shielding, and able to mount
9 t0 D7 q4 ]5 C> to a printed circuit board with header connector.
& E1 l) ]7 g: f( Q9 _0 R. A% v" d2 s>
' h" t* M5 r' B' e% ~6 k > At this time, we are interested in samples of a pair of modems that
4 k) G+ G# Z) y# P/ j> might be similar to this proposed system. We do not expect that you
' S4 e- H3 T% q+ o5 w7 D2 f > provide all of these specifications at this time. I can describe our
5 G! i: w# z; {- E8 s- L0 F0 g > immediate application needs in the next email if this project is of
0 ^+ U: K4 V1 i" t0 i > interest to you. Perhaps you can make the samples by those
; P j% s# I6 x1 k& J4 C3 D' J* H> specifications. This will allow us to test your radios before we move
5 H! B- T+ a+ j* Y5 {2 R. m> forward. We are interested in your 900MHz radio to start.
/ T$ @* K3 F; d2 O8 f: S
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