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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

$ M- {2 G, h3 A; k+ Q* L7 i 客户要求如下,如果哪家工厂可以做,请和我联系
. d; ?# G- W$ j. C. v1 s7 w > The application that we have in mind is similar to others that we commonly
# T8 g: @% X: p; I. F0 s: \> have. If we were to pay for FCC approval, we would want to use the modem
' r4 o, V- I; x& i > units in all similar applications under the same approval number.
9 x, s9 F7 q$ z. I) u# y5 a' K > Therefore, we would like to be able to configure the units to a specific
$ V, X s, g" r1 n, J; c> application. For the business that we do, this approach will yield more
9 ]0 B# f/ m- E0 v* c' A > sales based on the same product and approval. We are interested in the
$ ^2 @+ O# q; s& T( q5 f# D, S > following specifications:
u8 S0 T3 ~" r7 [; {>
' o8 ~' t& B+ B- j/ a0 y( `+ c> - 2 inputs at the Transmitter with three possibilities;
1 _1 }/ u! X, A' |/ Z& T8 |! | > 2 analog
' q8 t. T- g- l2 R# b7 h) N1 k8 f> 2 digital
$ J: ?$ a Q: U/ H> 1 analog and 1 digital
3 z0 A; k' y( b >
; r. }* U( {+ Z( e$ K > - 2 outputs at the Receiver with three possibilities to match inputs
! M" T& L2 p$ V3 p I>
! J) g9 S) V0 x K8 Z! T0 X3 B> - Ability to configure/define analog Transmitter input ranges through
3 a2 W# ]9 O6 J8 V* k& o0 ~2 L > simple programming method to correspond with full-range analog Receiver
( }( }" G8 D& L2 j2 g > outputs (0 - full voltage).
+ A( B2 ]6 N$ x; s5 x! ~4 P( o >
& N* \& q% n& ?/ S> - Ability to configure and set sample rates for the inputs.
0 }+ I* L3 S9 |1 ]6 K; [; M* T( o >
- S8 q& R3 B# X3 A3 }> - Digital output on Transmitter that turns on during the sampling period.
5 r! D* @* W6 j ^. ^( ?$ o7 R>
; a- ` J: K( B S! o, V > - Ability to configure a power saving Sleep Mode in the Transmitter by
- v/ j1 `7 s- I( X. N> both software control and input hardware control.
) R ^, M0 h$ B( A, F>
# M' j R# _" I' F. m> In order to configure the units, we would need a way to make the
5 @ Y9 r& N; Z* Z > settings. This would preferably be from a computer terminal so that
7 X% ~9 D& o* I0 D# ?, w > configurations can be saved or easily duplicated for production volumes.
7 B" B) W1 f; d: g2 r> The units should be small and compact with shielding, and able to mount
/ _# W3 S* N3 ~' w: t- k& J/ [ > to a printed circuit board with header connector.
: s1 |. B6 e/ B# E4 C$ E% O6 }>
& {: N/ V8 p# U' |- q> At this time, we are interested in samples of a pair of modems that
: ?4 N4 `4 H) c# |> might be similar to this proposed system. We do not expect that you
/ [4 ]1 B j( i) v! w5 _& ] > provide all of these specifications at this time. I can describe our
3 _7 S2 W$ g) r> immediate application needs in the next email if this project is of
" g) e! X3 k9 P2 G/ B0 U+ V> interest to you. Perhaps you can make the samples by those
8 R/ J& w: ] Z# q9 V4 Q/ p u > specifications. This will allow us to test your radios before we move
/ t3 {, b' R' I3 n4 | > forward. We are interested in your 900MHz radio to start.
8 t$ q. S, ^6 x4 |3 C3 R, v! _
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