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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

2 W' u1 ]* E- U* o: j8 {" l 客户要求如下,如果哪家工厂可以做,请和我联系
1 v, U) W8 F8 R9 M+ l: i > The application that we have in mind is similar to others that we commonly
& U R2 b9 W6 |> have. If we were to pay for FCC approval, we would want to use the modem
, x8 d" m6 o$ b7 W# ?> units in all similar applications under the same approval number.
1 N, V( L3 x |- a2 [> Therefore, we would like to be able to configure the units to a specific
; v$ N: G. _6 o' c% ^> application. For the business that we do, this approach will yield more
- ^% K2 o' q; J; F) R> sales based on the same product and approval. We are interested in the
2 T' H6 z9 d( J3 E5 } > following specifications:
7 T* o# q9 P! E7 h >
( ?4 b& { T! b5 K > - 2 inputs at the Transmitter with three possibilities;
/ t# w4 D( D8 X# M > 2 analog
" W- O$ K( r1 s1 k4 {+ ^" s3 U* _> 2 digital
0 [% |& g2 s& d( _9 ?> 1 analog and 1 digital
* Q* v- G8 u9 ?+ L ?3 j" t3 z# l>
m+ G8 S" w) n# A" `> - 2 outputs at the Receiver with three possibilities to match inputs
) d( M ?* R% H; I0 {>
2 C8 g5 S9 ~3 b! { > - Ability to configure/define analog Transmitter input ranges through
1 r" P' U5 k; v$ A > simple programming method to correspond with full-range analog Receiver
^1 F8 m' a% u > outputs (0 - full voltage).
0 L. y3 E' j5 {+ Y Q>
9 X0 U, A6 v3 P( b9 p' Z > - Ability to configure and set sample rates for the inputs.
7 v: h% \5 b& X* ]8 e$ e' H>
0 Q' f% U. z3 u' P0 ~5 T' d, r > - Digital output on Transmitter that turns on during the sampling period.
9 n& P# m7 `, t+ F. Z0 E >
6 e) r9 d5 H* V > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ W4 o9 V' G4 I1 Z > both software control and input hardware control.
+ j5 y# N. Z) z4 r! t( ] >
# ~. U+ b5 N: L5 c n) D2 a> In order to configure the units, we would need a way to make the
, [7 T M; F2 Y/ `# M0 |> settings. This would preferably be from a computer terminal so that
! |6 g* e n" _7 L4 x. ]- c > configurations can be saved or easily duplicated for production volumes.
8 h8 P8 z4 g$ w- o. c+ k+ J a' f > The units should be small and compact with shielding, and able to mount
8 ]6 ?1 F$ h; F1 ~) q9 y: z> to a printed circuit board with header connector.
' w4 R2 ]5 ~& c4 s+ f) [ >
F; E* C# s4 s1 j' w4 D > At this time, we are interested in samples of a pair of modems that
) ^) ?( }! p: l6 ]; M5 T > might be similar to this proposed system. We do not expect that you
" ^' B0 o ]* q/ H> provide all of these specifications at this time. I can describe our
3 {) u( S9 F+ O5 \- q+ n/ G> immediate application needs in the next email if this project is of
' N. @8 I; o& C1 L0 I# J; h, ~> interest to you. Perhaps you can make the samples by those
4 t+ l" Y8 B' ]> specifications. This will allow us to test your radios before we move
# n( J4 f/ U) m" E4 m > forward. We are interested in your 900MHz radio to start.
5 i8 t6 t4 V3 {! p2 s& Z' h
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