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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

0 M: c- V1 E# |2 Y2 z! N6 P 客户要求如下,如果哪家工厂可以做,请和我联系
: n# S* g) r0 w; G) }+ J> The application that we have in mind is similar to others that we commonly
* f) S8 `( V% z6 ?; ` > have. If we were to pay for FCC approval, we would want to use the modem
" Z7 U1 |: A4 n2 T6 a1 J > units in all similar applications under the same approval number.
7 H' b6 `' |6 U! g> Therefore, we would like to be able to configure the units to a specific
/ B0 l* U- M: h; z. z > application. For the business that we do, this approach will yield more
1 p; z* O6 D8 Z! a% V" { > sales based on the same product and approval. We are interested in the
8 E8 U9 ^4 |& ? > following specifications:
' @4 y+ D& Z5 k2 ^ >
( Q9 ~ J: a$ N+ a! ?1 D > - 2 inputs at the Transmitter with three possibilities;
- U: e$ g1 S4 m' q > 2 analog
& J% m# G6 a( z > 2 digital
9 i9 ?/ a0 u: u" A0 _0 J > 1 analog and 1 digital
8 {: ?$ [8 B8 P. f; ]2 s/ ~, N >
9 D3 `4 S* `" |% V B/ a" ` > - 2 outputs at the Receiver with three possibilities to match inputs
8 k) R2 r+ Y6 O- {8 O>
7 |" P3 @& x: O' H7 d+ Q$ `1 Y> - Ability to configure/define analog Transmitter input ranges through
0 P8 Z; k, Z% B. x > simple programming method to correspond with full-range analog Receiver
( o, O; ]& g+ c' c' n7 {9 m; q3 n> outputs (0 - full voltage).
5 D; x* M; f+ n& w# S" }( W>
( T9 f3 U- ]4 h# R/ c$ ` > - Ability to configure and set sample rates for the inputs.
; J; t$ k) S8 {$ R>
6 I5 [' s) B+ E$ G* ~, A0 m > - Digital output on Transmitter that turns on during the sampling period.
5 s& }, A& b* _# o. X7 j& O. _: e>
, m4 \6 `7 b; V6 A> - Ability to configure a power saving Sleep Mode in the Transmitter by
& G- Y: g U, d* {> both software control and input hardware control.
, Y3 N" e7 i ^& R3 u$ v: K ^' D* A>
. {* g" W# N. |9 I0 ]$ S > In order to configure the units, we would need a way to make the
8 y+ K( z% t! n9 s- U, q > settings. This would preferably be from a computer terminal so that
' y1 A6 L+ b- M: H3 d7 \, E9 P' t> configurations can be saved or easily duplicated for production volumes.
! p& m; F E8 ]2 m% S! s > The units should be small and compact with shielding, and able to mount
" ~1 o! U m5 e }5 {, I3 N2 r> to a printed circuit board with header connector.
4 G, T. i. H4 z \: J; i >
j& T# k& g+ V! C( N: A$ m% G/ f> At this time, we are interested in samples of a pair of modems that
+ A) f& c9 G/ r! V > might be similar to this proposed system. We do not expect that you
9 t4 r' r1 n1 J; v- k9 @ > provide all of these specifications at this time. I can describe our
& p$ Q1 D; b9 S) r ^8 i# J* X- U> immediate application needs in the next email if this project is of
: e$ i5 |' K0 z" n4 H > interest to you. Perhaps you can make the samples by those
( l0 D: K/ s) I) b/ ~' J> specifications. This will allow us to test your radios before we move
1 v% F1 b7 y% F4 D! l5 k2 a' e > forward. We are interested in your 900MHz radio to start.
! l. K3 t1 p& m4 a
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