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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

; W# x( g4 P. C) R4 a% L客户要求如下,如果哪家工厂可以做,请和我联系
4 a7 b0 v' g1 s9 m. t$ M > The application that we have in mind is similar to others that we commonly
/ ]! K. J" P H9 R* ]" V> have. If we were to pay for FCC approval, we would want to use the modem
. o1 B! G1 r( y; m > units in all similar applications under the same approval number.
) Q& J7 @; p' `! G > Therefore, we would like to be able to configure the units to a specific
1 q1 v" G" h& {. B9 H > application. For the business that we do, this approach will yield more
5 h" c* `3 l9 q+ G" I> sales based on the same product and approval. We are interested in the
' r3 _) E2 E5 Y$ ]3 B# y> following specifications:
& [7 K: Z+ N* W% K>
, f, R3 {0 r3 `+ ]! v' C/ C r% p > - 2 inputs at the Transmitter with three possibilities;
- X! ]. I$ s3 K Y1 T > 2 analog
! L5 x6 N& A% ]- T4 \. K& ]1 ~ > 2 digital
2 p9 N! |( }: x( x! v > 1 analog and 1 digital
9 u# e; k" L8 O' }# r' m>
, F/ N% m, b/ L; E1 N& H > - 2 outputs at the Receiver with three possibilities to match inputs
" ^# r5 x) _- {+ I& P7 o >
4 \, @8 {, J$ }9 h1 j+ \> - Ability to configure/define analog Transmitter input ranges through
$ i4 G" O& O) d > simple programming method to correspond with full-range analog Receiver
8 V7 E- V# W4 _ > outputs (0 - full voltage).
N# K; m& D* q, E8 Q$ O>
9 j$ B% f5 b; w5 P5 Z% ]> - Ability to configure and set sample rates for the inputs.
: |( f2 u6 f, |>
8 F0 s6 u9 M( I& L: H( b" R, D$ A3 { > - Digital output on Transmitter that turns on during the sampling period.
) Y. y6 [! d* l# Z" n2 \/ ?>
, Y/ @ U8 G4 n9 ^& k> - Ability to configure a power saving Sleep Mode in the Transmitter by
% ?5 n, @8 e$ a1 W1 |> both software control and input hardware control.
/ b: P1 g0 l% N>
( L* o$ z9 U1 l> In order to configure the units, we would need a way to make the
. w# S4 R3 F) q0 T" u> settings. This would preferably be from a computer terminal so that
- U t/ m7 ~5 ], c1 y* k" B6 d' i> configurations can be saved or easily duplicated for production volumes.
& M a* [- H6 Z0 } L> The units should be small and compact with shielding, and able to mount
" X4 V# P& I) h% r6 R > to a printed circuit board with header connector.
+ z/ n8 z, n1 N% Y8 d% V1 w >
0 P0 [% N9 O+ T1 |% u( i& j> At this time, we are interested in samples of a pair of modems that
: s4 p2 W- ~( |6 p* l7 o> might be similar to this proposed system. We do not expect that you
$ {. X; Z2 ^' G, A$ M9 D6 e> provide all of these specifications at this time. I can describe our
0 D/ S: A, d% v8 `3 n7 U5 U> immediate application needs in the next email if this project is of
, \9 @1 t/ K1 g6 p& C+ F# ]. q > interest to you. Perhaps you can make the samples by those
- {' `3 {" @3 r2 f, F: i> specifications. This will allow us to test your radios before we move
7 L: Q- C, y# T# N0 f( q > forward. We are interested in your 900MHz radio to start.
; s! x4 m8 B, z2 Z* M( K
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