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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

: [7 o1 `& _- m! i: J客户要求如下,如果哪家工厂可以做,请和我联系
9 O* Y3 z! i, G2 A; J > The application that we have in mind is similar to others that we commonly
: l* I1 a6 s8 e3 a, @# I, b8 i> have. If we were to pay for FCC approval, we would want to use the modem
: p) X/ ~) h0 K4 b! F > units in all similar applications under the same approval number.
9 \* k* r+ a' w# o7 L> Therefore, we would like to be able to configure the units to a specific
9 l6 x! {$ F- `& U& O( e. m# i$ k > application. For the business that we do, this approach will yield more
# {+ k2 `& B* j7 Z7 {- S8 s> sales based on the same product and approval. We are interested in the
6 {- g7 F3 q' D7 a j$ j, r> following specifications:
! l6 d4 b# y( u! i>
6 z) ~6 K) ?% \$ ?4 c/ E& a > - 2 inputs at the Transmitter with three possibilities;
9 M0 T6 O. Y$ m6 k$ i3 ^! V( _> 2 analog
' e) q' j0 l [' R& ^ > 2 digital
/ g( z0 X# o; ^& c H) w> 1 analog and 1 digital
5 [7 Z. U- H* ^" h >
- k( @/ D. X8 W3 e) W- k> - 2 outputs at the Receiver with three possibilities to match inputs
( [2 X* [ w2 c( P8 g>
5 E' o8 G3 D B* E$ I2 H# F> - Ability to configure/define analog Transmitter input ranges through
3 }4 K9 k/ L: ]; d! N0 M) L) f > simple programming method to correspond with full-range analog Receiver
& x: [: o) a! @- M$ j> outputs (0 - full voltage).
r6 `2 @; V8 ^8 L5 h& s- `' y>
! w6 W" g1 c7 ?' E* P> - Ability to configure and set sample rates for the inputs.
* J6 f/ ]9 X: x0 H- k2 w >
* E; d- G. n, P* f8 n > - Digital output on Transmitter that turns on during the sampling period.
, t. o/ Z; K; v >
8 J- }& I' R3 d% \- j> - Ability to configure a power saving Sleep Mode in the Transmitter by
+ ^1 b0 x: y( h. x% V > both software control and input hardware control.
# @+ `2 M4 @+ N2 _5 f3 a>
' w: N. n3 k3 v, o> In order to configure the units, we would need a way to make the
2 @1 t! z6 N) r0 U) T) j: i; r7 f! ]> settings. This would preferably be from a computer terminal so that
* x8 `, T( l) J# \( L > configurations can be saved or easily duplicated for production volumes.
! ]# R4 f' V! S9 |> The units should be small and compact with shielding, and able to mount
6 Z# |1 ?& o( l0 L > to a printed circuit board with header connector.
$ a3 j& w- F- m4 d( S1 ?% R1 q>
/ S D9 v2 o; ~6 z> At this time, we are interested in samples of a pair of modems that
) s7 A$ e, a& e) @8 X > might be similar to this proposed system. We do not expect that you
7 U; N" F1 }, E; e7 P R5 g- c> provide all of these specifications at this time. I can describe our
! L% @% K. g9 D# n6 o2 r) L+ D) ?> immediate application needs in the next email if this project is of
( E7 X. |. N% l> interest to you. Perhaps you can make the samples by those
; C1 F$ I9 }- i9 t" U; a > specifications. This will allow us to test your radios before we move
) R- W; X$ `9 n- Y1 ~7 ^1 Z > forward. We are interested in your 900MHz radio to start.
[8 d: U: \* d
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