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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

, s# j1 Q+ h! x$ A 客户要求如下,如果哪家工厂可以做,请和我联系
' D7 f7 z3 x0 c7 v > The application that we have in mind is similar to others that we commonly
5 N8 }. E4 B7 Q, P/ A) G > have. If we were to pay for FCC approval, we would want to use the modem
( s; n0 o' ^& Q! a2 o9 r> units in all similar applications under the same approval number.
! j p* p4 g0 Z& m> Therefore, we would like to be able to configure the units to a specific
+ k4 Y% q4 ], ^) Y > application. For the business that we do, this approach will yield more
: \* {/ b1 R$ I- l. }> sales based on the same product and approval. We are interested in the
% v. J# N2 t# A6 u. g7 v, I> following specifications:
9 ^# f3 Z9 U3 q- o# y >
. ]0 Z- |0 R4 p+ a1 D, V> - 2 inputs at the Transmitter with three possibilities;
% v; _2 M$ I2 I. V& W5 T> 2 analog
0 u/ F5 t/ Q/ r& E* U/ h) L > 2 digital
* X# V; U- m5 t > 1 analog and 1 digital
# i- \) q3 R( ]3 [ L1 B >
/ O1 e! ~; r8 m& ?' j* m5 j% _# Z; T> - 2 outputs at the Receiver with three possibilities to match inputs
7 H, b8 C: s' J/ C0 B6 w) p>
1 a$ n. \. g! _( I9 A > - Ability to configure/define analog Transmitter input ranges through
- c7 v5 ^% y$ d) e> simple programming method to correspond with full-range analog Receiver
5 b- J. `+ ?) L$ v, [ > outputs (0 - full voltage).
( l! U+ A8 ]5 c& H: D3 C3 C>
. k* \* i' X- h; g9 q > - Ability to configure and set sample rates for the inputs.
1 ` j8 } M* {/ c1 I! l >
2 d1 o& H+ |5 r> - Digital output on Transmitter that turns on during the sampling period.
4 U( E- G- P% M >
% V6 Y& C% r9 Q- J4 ~( g> - Ability to configure a power saving Sleep Mode in the Transmitter by
, C3 m8 r: c, u" y4 d! } v# n> both software control and input hardware control.
7 q0 J- R$ E* d" z1 d1 ` >
' L: z7 L/ P' c& H> In order to configure the units, we would need a way to make the
: ~ q; x6 v9 X: o7 f" N0 P) J; J> settings. This would preferably be from a computer terminal so that
P: B, G0 I' V: K> configurations can be saved or easily duplicated for production volumes.
* x0 b' W: e3 y7 N0 b > The units should be small and compact with shielding, and able to mount
! [* o% v8 G5 X% z% o7 {> to a printed circuit board with header connector.
/ K% f3 B& v$ ?1 e/ q: M >
3 X! p" }4 a6 ]> At this time, we are interested in samples of a pair of modems that
4 e9 U3 L% O+ v5 Y > might be similar to this proposed system. We do not expect that you
8 L: W* S2 {. y8 U' a> provide all of these specifications at this time. I can describe our
5 u( Y+ x* `! ~2 E. u9 k( i > immediate application needs in the next email if this project is of
5 h- b1 ]- Q9 [> interest to you. Perhaps you can make the samples by those
' o+ a! M! J# S9 L1 v/ t0 j > specifications. This will allow us to test your radios before we move
# l3 L6 @7 a- l! |, k/ i> forward. We are interested in your 900MHz radio to start.
% W/ e- ?' N; J+ ?: ?
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