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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

% O0 A5 I! Z3 ]+ i 客户要求如下,如果哪家工厂可以做,请和我联系
7 h' w' b, i- b6 B: U > The application that we have in mind is similar to others that we commonly
+ V: n2 e7 r4 N0 u* o> have. If we were to pay for FCC approval, we would want to use the modem
+ L* A {0 J, d, p. [+ x3 g> units in all similar applications under the same approval number.
3 }$ f# ?& u7 P6 z> Therefore, we would like to be able to configure the units to a specific
7 S) L8 I8 o t* T8 B& Y> application. For the business that we do, this approach will yield more
8 s$ ^7 P. E; M& v# A > sales based on the same product and approval. We are interested in the
$ c1 [8 d, m3 J* G# ~> following specifications:
5 v" [; H3 \. A2 Q7 D) ~; R>
1 d b! H$ p2 R# O( U8 K5 P > - 2 inputs at the Transmitter with three possibilities;
: z* |' N8 Y4 u2 I2 X" o1 d) y4 r > 2 analog
. o" q. e- P: ]! W7 \0 p% G/ h> 2 digital
% W4 X6 y- _" L) ~/ w > 1 analog and 1 digital
, R$ F/ f& D& }+ n& E* V# T! Z >
4 [: H5 I- |' N3 {% \, S, A; c > - 2 outputs at the Receiver with three possibilities to match inputs
0 t0 Y, C# r+ i7 G3 z. u4 g >
7 h1 q* h# j. N > - Ability to configure/define analog Transmitter input ranges through
, d, D! d) ?0 \. I > simple programming method to correspond with full-range analog Receiver
- F! @& p Z; b0 U( R$ Q1 D; j( V> outputs (0 - full voltage).
4 m \) E* j0 y% s7 ~>
+ e' T) h6 _1 l' `' b" U i/ K% E/ D> - Ability to configure and set sample rates for the inputs.
' c" W, M" T% _5 K3 a; X2 e9 a >
8 A: [; P1 g; h5 u( J! v > - Digital output on Transmitter that turns on during the sampling period.
0 R3 n4 F$ J- n) P1 D+ K& ?7 \>
" l7 b, H* U4 y5 z, Z0 n$ h> - Ability to configure a power saving Sleep Mode in the Transmitter by
0 E$ e- d- O: l. w; E7 N > both software control and input hardware control.
c; s) Y' S- S3 {5 X/ T$ @ >
7 \) y& ]) a5 E2 u: [> In order to configure the units, we would need a way to make the
: c/ F$ m) v( B* m2 E5 ] > settings. This would preferably be from a computer terminal so that
$ {- L, d+ a- m+ \8 E2 t1 l2 p > configurations can be saved or easily duplicated for production volumes.
+ x3 R" |# N- r: [1 R4 Z% O8 D$ i> The units should be small and compact with shielding, and able to mount
- }3 R% g; U) f> to a printed circuit board with header connector.
* j" {- T% o1 G, w7 X>
9 B h( u/ i4 b8 v: W- r0 w v> At this time, we are interested in samples of a pair of modems that
0 I6 Y( e" L( z% W) [1 U+ O> might be similar to this proposed system. We do not expect that you
; t8 ?3 b: Q! c> provide all of these specifications at this time. I can describe our
5 a- P6 f& s7 x% d> immediate application needs in the next email if this project is of
7 [% @$ Y4 X5 n> interest to you. Perhaps you can make the samples by those
4 p# {8 s- `8 m: E, u* j> specifications. This will allow us to test your radios before we move
, V/ L2 K% c/ X> forward. We are interested in your 900MHz radio to start.
( [$ \! y: X3 d9 U0 n4 a E
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