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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

9 P( x0 O' A8 a" b5 Z0 B! H3 H; R客户要求如下,如果哪家工厂可以做,请和我联系
0 Z6 G! J5 X, z8 ~ > The application that we have in mind is similar to others that we commonly
; E" h7 a- e: _# Z/ ]- j> have. If we were to pay for FCC approval, we would want to use the modem
! y9 u! K' ~3 w' b% M" K > units in all similar applications under the same approval number.
' f5 I9 U) Q K* y$ s7 q > Therefore, we would like to be able to configure the units to a specific
: G# E7 V3 g# Y, o* f, ^, b8 w3 n > application. For the business that we do, this approach will yield more
6 j8 y3 ^1 g- Y6 @6 I> sales based on the same product and approval. We are interested in the
W9 N) z- E+ n1 T( Q# ^: d > following specifications:
7 `* w6 J( Y# E& f, F5 o>
. j5 V! D+ z0 n# z3 \- G> - 2 inputs at the Transmitter with three possibilities;
2 c7 w# s% z# F; ?) z > 2 analog
6 f2 x; |4 j' a: k' V! s& P > 2 digital
_9 S( E# P: A > 1 analog and 1 digital
- M. a( u3 b7 ]6 t" o2 u3 @ >
" q# t# L3 p2 r, e. ^( v# | > - 2 outputs at the Receiver with three possibilities to match inputs
% r1 q: o5 O# \6 j4 E+ ]9 q>
; u( @4 _& E: Y> - Ability to configure/define analog Transmitter input ranges through
% V7 R% O g! \$ ]( b8 R2 P > simple programming method to correspond with full-range analog Receiver
9 S7 H9 f0 E6 I4 K8 N" s, a> outputs (0 - full voltage).
* A7 t! w' Z d! K5 v2 s/ x >
4 o# S: D9 |& B- T> - Ability to configure and set sample rates for the inputs.
$ F2 h# u/ d4 A4 V, h9 \>
* `, u7 |) x3 M, r i > - Digital output on Transmitter that turns on during the sampling period.
' I1 C2 a6 H4 A8 ?& v3 y>
7 {( q+ y" T* _3 b5 n3 e > - Ability to configure a power saving Sleep Mode in the Transmitter by
5 i( E' g* l. \6 s) n2 I> both software control and input hardware control.
+ x; n$ k3 C5 B. k >
: A- ^* F; |! ^8 L# M0 e7 b' W+ F > In order to configure the units, we would need a way to make the
# f% @& d v+ u3 b3 |) {1 \% l > settings. This would preferably be from a computer terminal so that
6 i( n- E7 G9 b/ I' H > configurations can be saved or easily duplicated for production volumes.
0 M3 a$ Q/ d2 n2 } > The units should be small and compact with shielding, and able to mount
4 I" K7 E5 l, H; r > to a printed circuit board with header connector.
$ \! I2 e x; @6 e ?+ k) }>
, @/ w) |. O3 _: x2 a> At this time, we are interested in samples of a pair of modems that
E( E- c; K% Y$ s- k# V G > might be similar to this proposed system. We do not expect that you
$ r [! D7 j6 h9 w- s: h > provide all of these specifications at this time. I can describe our
6 R$ F" X7 v7 ~# t4 I- G' }5 k> immediate application needs in the next email if this project is of
4 R; e2 h' J" R0 u) q) k* ?6 Y0 V > interest to you. Perhaps you can make the samples by those
' V2 D/ N; s% L% o! ? > specifications. This will allow us to test your radios before we move
- b9 O. V: A1 P# s> forward. We are interested in your 900MHz radio to start.
/ O+ Z$ l; M% X' ^
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