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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

( p" q! ~2 Z' a6 Z( t" [ p客户要求如下,如果哪家工厂可以做,请和我联系
3 d) V m+ P- c* v* F- y& j> The application that we have in mind is similar to others that we commonly
$ ?/ X/ F W1 Q > have. If we were to pay for FCC approval, we would want to use the modem
, z9 Q- b Y. b3 c" y> units in all similar applications under the same approval number.
# r3 M) L: ?, C9 O> Therefore, we would like to be able to configure the units to a specific
; X! d4 U k2 e0 X5 ^3 L > application. For the business that we do, this approach will yield more
: b: S# a+ [/ P* ?' V! W> sales based on the same product and approval. We are interested in the
4 ~6 y; S6 f4 E2 ?4 E% a > following specifications:
# X; K2 [# e$ M2 @& A8 R, Y8 ^5 i' X8 h >
H A) X- q3 s( y: H> - 2 inputs at the Transmitter with three possibilities;
8 @7 u6 T) S% r2 ?* h> 2 analog
( u7 P2 U8 \+ I3 k4 F1 D> 2 digital
! O$ Q0 f `8 t# z > 1 analog and 1 digital
: I, r% B9 |! \( S% g1 T( {1 ` >
. `5 t) A% |* Z: y > - 2 outputs at the Receiver with three possibilities to match inputs
) X; m) ~4 ~3 `* j8 G' W) a; x>
1 T \) E; P t1 K: R> - Ability to configure/define analog Transmitter input ranges through
: c+ {& g( x4 u2 @> simple programming method to correspond with full-range analog Receiver
5 p1 [0 C4 |# L4 P) k# ~ R> outputs (0 - full voltage).
6 m4 r7 z2 b3 d# p>
9 m1 o L) Q* M @, s > - Ability to configure and set sample rates for the inputs.
3 U% V0 _1 g- u& b/ z >
+ f; E3 V! l( ]9 Q5 V% ? > - Digital output on Transmitter that turns on during the sampling period.
1 ^6 G3 p% Q2 Q >
$ R6 P, b/ N' H8 L> - Ability to configure a power saving Sleep Mode in the Transmitter by
% @, H# Y6 ?8 t* O0 G > both software control and input hardware control.
0 s4 e5 D6 j0 H4 b" B( i% r& M& L>
8 A- v0 d& w0 V' e > In order to configure the units, we would need a way to make the
- a. Y( q( h3 v9 U) Y > settings. This would preferably be from a computer terminal so that
7 L: v H/ T% t( T/ ? > configurations can be saved or easily duplicated for production volumes.
7 \6 Z* C4 L/ Z' z/ {# j3 r, ~> The units should be small and compact with shielding, and able to mount
8 T9 V {5 }1 m7 [2 c0 W> to a printed circuit board with header connector.
: n! |. }$ R; Y9 a0 }. Y4 T+ ~! }3 J >
% U, O% g; D$ ]+ H+ W> At this time, we are interested in samples of a pair of modems that
+ o3 x; }9 c4 a" x > might be similar to this proposed system. We do not expect that you
6 x% Q) H: D' D# \4 h > provide all of these specifications at this time. I can describe our
4 Z) z9 [* c& V' c4 N > immediate application needs in the next email if this project is of
+ ]) D: B& L4 ] A* K > interest to you. Perhaps you can make the samples by those
) W& E9 y* N8 @- v$ h1 n > specifications. This will allow us to test your radios before we move
& M u. ?7 S. N% E/ [4 k > forward. We are interested in your 900MHz radio to start.
' B+ m c4 N% N1 b& b+ m
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