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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

$ r0 q% A2 p9 d( g客户要求如下,如果哪家工厂可以做,请和我联系
4 c; g& c% Z* E/ h' n> The application that we have in mind is similar to others that we commonly
; s$ _+ S! O, J/ a( B/ R+ Z# e- x> have. If we were to pay for FCC approval, we would want to use the modem
: J5 v9 d, g/ N, r/ A> units in all similar applications under the same approval number.
8 q2 j: m3 A2 R/ d2 g3 w> Therefore, we would like to be able to configure the units to a specific
( M' j1 j- [8 {7 {* B> application. For the business that we do, this approach will yield more
( E* V% U3 K+ F. l7 ^> sales based on the same product and approval. We are interested in the
1 H$ a5 E4 ]. W) t o& h- e > following specifications:
5 S6 Q8 \- j/ R; M5 @( t- J9 a5 \ >
( p; M( G5 A9 ~5 T" X1 F# ~> - 2 inputs at the Transmitter with three possibilities;
" e; A' b) f, l# B' i > 2 analog
" |# R' \0 t( V9 n5 ~ > 2 digital
5 b* b+ t* o2 G, Q; }5 F> 1 analog and 1 digital
' D8 y- o! z1 p8 x>
, t4 U1 O1 h$ `; C> - 2 outputs at the Receiver with three possibilities to match inputs
) D, H, y+ c& r; g1 s >
6 T% S# ^+ m: ~ > - Ability to configure/define analog Transmitter input ranges through
+ _% d; v6 U, Z > simple programming method to correspond with full-range analog Receiver
% c3 k$ T% r( S7 M/ Q# Y4 ? > outputs (0 - full voltage).
/ C6 Y% Y, P3 D& `>
& q. A0 B8 |4 n' @% V> - Ability to configure and set sample rates for the inputs.
* y- v" L6 Q1 {" M6 p>
* d' }! k( ^2 n9 z0 W5 f> - Digital output on Transmitter that turns on during the sampling period.
& {. Z* J# f/ k% { C- Y% R! J>
9 X' }+ {- g* z1 N > - Ability to configure a power saving Sleep Mode in the Transmitter by
" J% X* I1 p3 W; Z1 s> both software control and input hardware control.
6 z$ q' ^# t& \! O% C>
: o2 h! K* R4 g5 k* W4 P& V | > In order to configure the units, we would need a way to make the
! X0 b+ A( F: c4 M > settings. This would preferably be from a computer terminal so that
& P* J. n/ K. q3 J) a, }6 p) _ > configurations can be saved or easily duplicated for production volumes.
3 I5 Q, P# v/ _% G1 |4 R% V3 X* y > The units should be small and compact with shielding, and able to mount
) I1 d- w5 |# \& A > to a printed circuit board with header connector.
R2 @0 r6 G/ v; | >
' a' b' y& {" N; H> At this time, we are interested in samples of a pair of modems that
$ N, R% f6 D! A: k# b' m- h> might be similar to this proposed system. We do not expect that you
, m5 f2 U* e5 k( a: [; m/ I > provide all of these specifications at this time. I can describe our
) J* u5 R, n# ? m. x, O* w > immediate application needs in the next email if this project is of
! v: P6 l! G" t2 O& b" v9 Q* U% x> interest to you. Perhaps you can make the samples by those
, T/ R8 w5 J! h5 M > specifications. This will allow us to test your radios before we move
! E/ @, v5 u: m: d/ |> forward. We are interested in your 900MHz radio to start.
/ K* t9 r# t# g9 V. g
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