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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

# O4 `) P: q/ ` n2 X: }6 | 客户要求如下,如果哪家工厂可以做,请和我联系
! @( e2 ?* t' m: p& Q7 J> The application that we have in mind is similar to others that we commonly
2 f9 }3 j" s' B! z> have. If we were to pay for FCC approval, we would want to use the modem
$ W- [9 L% N$ X3 J! v > units in all similar applications under the same approval number.
, g0 L+ J) P( P/ @- O% l > Therefore, we would like to be able to configure the units to a specific
; Q) Q4 p3 h0 D- k' ~# T# \+ _> application. For the business that we do, this approach will yield more
5 x Z* x$ K4 \> sales based on the same product and approval. We are interested in the
9 X; k: X0 p$ y6 w' t# a > following specifications:
: g; O% R D1 D1 b9 s* u+ S/ v+ \1 j2 c >
V1 Y. @# s* _' l5 k8 m% U> - 2 inputs at the Transmitter with three possibilities;
3 F9 T8 O) h, k; k& k+ ?( G> 2 analog
$ \$ ?5 ], T. \3 _! M# O, L( W> 2 digital
3 {1 q+ y/ `) z5 ^" w, l; ~6 v> 1 analog and 1 digital
8 o6 B, U. A- p% o5 C# \>
1 ^) S1 d) g5 H > - 2 outputs at the Receiver with three possibilities to match inputs
0 E/ m; m7 ~! V3 m! C1 [* l- p>
9 _6 O% k' @ V d$ c; M/ w$ l+ n > - Ability to configure/define analog Transmitter input ranges through
3 w- c2 j+ A. ]/ v& L > simple programming method to correspond with full-range analog Receiver
$ q G9 p: I) y& H# J- Z> outputs (0 - full voltage).
* S" t( W2 L% x! N >
( A; t% O! d! p& \! ?; t& T > - Ability to configure and set sample rates for the inputs.
/ _8 v: W7 E# V( x# ?. L) D+ n >
7 p, B/ Y! |; W( `8 q> - Digital output on Transmitter that turns on during the sampling period.
) E! G! v1 e" [7 G. M >
% v. Z2 B; @" ?, ^, s3 G& E > - Ability to configure a power saving Sleep Mode in the Transmitter by
~3 i% ~- e6 D2 P& O2 E2 v S > both software control and input hardware control.
) D# B( ?$ {% I6 r4 ` >
, }* n& o+ S% A2 G+ A > In order to configure the units, we would need a way to make the
- E; \/ U6 O" D7 z > settings. This would preferably be from a computer terminal so that
# p1 Q: o8 ?; N; l& ^5 V9 C$ T> configurations can be saved or easily duplicated for production volumes.
$ P% S! m, T1 F; t2 ? > The units should be small and compact with shielding, and able to mount
' l6 P2 l- r) b& r# ^> to a printed circuit board with header connector.
2 ?( {5 f+ k; ?- r>
6 F+ n4 a0 Z7 U0 b2 a> At this time, we are interested in samples of a pair of modems that
$ L7 l7 B/ {3 a6 [+ x> might be similar to this proposed system. We do not expect that you
) a% L2 ^! H/ _7 Q+ C/ }' M> provide all of these specifications at this time. I can describe our
% }5 }% H7 z$ T> immediate application needs in the next email if this project is of
" }1 m8 m+ f5 T, \8 v > interest to you. Perhaps you can make the samples by those
- ]0 [5 o# |& m* ^4 ?4 I8 p8 k) U# e> specifications. This will allow us to test your radios before we move
u* }7 Q4 b! _$ G9 D; v0 i. T > forward. We are interested in your 900MHz radio to start.
" M2 _0 x# P n- x: i7 `' A$ o1 o
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