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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

# A( R9 ~' p7 o9 _6 A* b$ Z 客户要求如下,如果哪家工厂可以做,请和我联系
2 z" U( o. r7 ~- v+ D > The application that we have in mind is similar to others that we commonly
n$ J; I" ]. M8 n5 g. C > have. If we were to pay for FCC approval, we would want to use the modem
- x/ X L8 R0 r. f" { > units in all similar applications under the same approval number.
. K6 I; |3 H9 Z8 n' i: j( ~ > Therefore, we would like to be able to configure the units to a specific
$ N; u7 ~+ Y5 k. F9 [& Y. P> application. For the business that we do, this approach will yield more
* b5 l/ X; o5 |$ U& e) E! @5 L > sales based on the same product and approval. We are interested in the
3 |) `1 t! ?3 w. G4 D > following specifications:
- h( m: D. J4 P! i* q) K>
! k) v' M X2 g6 R) h > - 2 inputs at the Transmitter with three possibilities;
' G( T$ J* C. S > 2 analog
/ ` N- E8 Q8 j- |> 2 digital
/ `; i* U( k' |" J& G> 1 analog and 1 digital
% e) L- i7 s3 |- ^7 l1 t>
5 s2 ?4 v* u- L- ]! E5 ~) D! W> - 2 outputs at the Receiver with three possibilities to match inputs
# b+ i2 X% [5 p8 u( D; v1 U( t>
s9 G2 ]3 U6 D1 |" L! ]4 E > - Ability to configure/define analog Transmitter input ranges through
1 P; N% L9 ?3 M8 Y> simple programming method to correspond with full-range analog Receiver
1 l, @6 B2 X, [& M7 c! K5 i> outputs (0 - full voltage).
# ?1 e$ T* |# O3 }$ W% f1 _+ J >
' {- c* O% }, O+ _0 ~4 t9 ? > - Ability to configure and set sample rates for the inputs.
7 f* \+ ]# @, b* w, L" z$ _) j >
6 z3 k/ ]9 Y* D# S8 J+ u9 O> - Digital output on Transmitter that turns on during the sampling period.
) N: p' x4 ]4 j/ R>
9 l, K3 [5 u$ L6 V, Q | > - Ability to configure a power saving Sleep Mode in the Transmitter by
/ O5 X" U/ W7 x> both software control and input hardware control.
4 H3 o, Q' h% t/ _+ S' H>
: A2 L" W" p( U9 F9 e > In order to configure the units, we would need a way to make the
+ w- H4 V# B1 |/ R > settings. This would preferably be from a computer terminal so that
6 H; W- X/ m; O, ~% K9 k& P; H > configurations can be saved or easily duplicated for production volumes.
, ^1 S8 \+ Z3 w2 g/ M4 X y) i6 d> The units should be small and compact with shielding, and able to mount
& X" I- b4 D5 w0 R > to a printed circuit board with header connector.
8 j% d7 P& g7 C4 X* r! N/ {( H>
& {4 f2 c2 m9 U > At this time, we are interested in samples of a pair of modems that
. h6 Q% `( E- w7 ]" ]* z0 { > might be similar to this proposed system. We do not expect that you
, w7 H4 L k7 z! l4 B+ m/ y: E> provide all of these specifications at this time. I can describe our
: e5 V1 H! ?/ b/ k; p> immediate application needs in the next email if this project is of
$ H) o- ?$ h) i. v- w, b> interest to you. Perhaps you can make the samples by those
* q. C, |: X2 T# v: @8 r$ _ > specifications. This will allow us to test your radios before we move
) R! R' `- l" n, C> forward. We are interested in your 900MHz radio to start.
& h$ w1 r0 k" c3 x* m0 ^& ~ F6 k1 S
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