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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

" l& N3 f3 v ^' e, L( {客户要求如下,如果哪家工厂可以做,请和我联系
( T8 l4 T, A0 U& \> The application that we have in mind is similar to others that we commonly
- @) F) s! u+ O$ F: \& ?> have. If we were to pay for FCC approval, we would want to use the modem
1 \% D; j2 b8 Q: O3 y# H" d> units in all similar applications under the same approval number.
5 Q8 B5 x' M! B& u* Y, I& A/ s> Therefore, we would like to be able to configure the units to a specific
' ?0 n. V4 n. T9 ~" `4 Z4 `/ W> application. For the business that we do, this approach will yield more
( w n5 Z6 v, W- b" c( Q( j> sales based on the same product and approval. We are interested in the
: N' N5 T5 R/ `4 M > following specifications:
. ?* d' ~# h: ^ w) s: t>
& v/ F7 @3 R# N5 q# r > - 2 inputs at the Transmitter with three possibilities;
' ?1 l' I8 _5 q7 n5 E > 2 analog
( {; {! b1 A {9 x" \8 k > 2 digital
& v! E) T0 D; _4 [8 t> 1 analog and 1 digital
7 v, V; W9 X: m>
2 E" R: r! W. d/ X* K% j1 T: _' i1 J> - 2 outputs at the Receiver with three possibilities to match inputs
! X0 ?$ u" s' Y >
5 T y( k( E' c0 T0 ?7 n > - Ability to configure/define analog Transmitter input ranges through
# i, O, `0 B& {, a> simple programming method to correspond with full-range analog Receiver
( ~6 R' g4 j9 N> outputs (0 - full voltage).
' l4 _9 b M" B" ^+ ~' q" l! s9 R) p >
) N! e! l' C6 ?9 S> - Ability to configure and set sample rates for the inputs.
/ i7 ?( Z8 k) B; k7 I& F% A/ q>
5 R. L1 M4 T! O3 \+ {9 V Q: [ > - Digital output on Transmitter that turns on during the sampling period.
' j1 P( i! R+ n" E >
# Y+ e8 M N. e/ a> - Ability to configure a power saving Sleep Mode in the Transmitter by
& G! S: G* a9 E7 W; Y" j0 G2 ?- ?7 i > both software control and input hardware control.
: v9 B" I) E7 @0 O% `; g>
. o- z$ m+ |* ~2 ~5 t% e1 a& y5 M5 V > In order to configure the units, we would need a way to make the
7 V; v* T8 O; J9 ?4 C> settings. This would preferably be from a computer terminal so that
! [! p+ c" E# E7 @* W* O > configurations can be saved or easily duplicated for production volumes.
2 Q3 X* D2 D9 W( T> The units should be small and compact with shielding, and able to mount
# F0 o7 R% L1 J! T/ H! F4 y > to a printed circuit board with header connector.
0 I. ~2 B0 h H/ J>
0 j; J7 T7 t6 ^9 ?5 R: e f# ^' N; ~> At this time, we are interested in samples of a pair of modems that
; G) Y, n* ~) e7 ?: b0 v& z> might be similar to this proposed system. We do not expect that you
" G4 ~ C/ u8 w> provide all of these specifications at this time. I can describe our
. l# t' G: |; y) C* T$ L! c> immediate application needs in the next email if this project is of
0 ^2 k% S' m& y; [* w > interest to you. Perhaps you can make the samples by those
. ?! N/ k' r# q' p# }> specifications. This will allow us to test your radios before we move
- Y5 D: M* H5 t > forward. We are interested in your 900MHz radio to start.
# r. y$ x! e( ^8 P6 a
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