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FX619L1 参数 Datasheet PDF下载

FX619L1图片预览
型号: FX619L1
PDF下载: 下载PDF文件 查看货源
内容描述: CML半导体产品产品信息 [CML Semiconductor Products PRODUCT INFORMATION]
分类和应用: 解码器半导体编解码器电信集成电路电信电路
文件页数/大小: 11 页 / 135 K
品牌: CMLMICRO [ CML MICROCIRCUITS ]
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Specifications ......  
Notes: 1. Dynamic characteristics are specified at 5V unless otherwise specified.  
2. All logic inputs except, Encoder and Decoder Data Clocks.  
3. For an Encoder/Decoder combination, Insertion Loss contributed by a single component is half this  
figure.  
4. Driven with a source impedance of <100.  
5. Recommended values – See Figures 5, 6, 7 and 8.  
6 Group Delay Distortion for the full codec is relative to the delay with 820Hz, -20dB at the encoder input.  
7. An Emitter Follower output stage.  
8. 4V = 80% VDD, 3.5V = 70% VDD, 1.5V = 30% VDD, 1V = 20% VDD.  
9. Analogue Voltage Levels used in this Data Sheet: 0dBm0 = 489mVrms = - 4dBm = 0dB.  
- 20dBm0 = 49mVrms = - 24dBm.  
Process Information  
The following Table gives details of the process and test controls employed in the manufacture of the FX619  
Eurocom Delta Codec in J and M1 packages only. L1 and L2 products are supplied without the process and test  
controls detailed below.  
Function  
Hermeticity  
Reference  
Remarks  
Fine Leak Test –  
Coarse Leak Test –  
Mil Std 883C  
Mil Std 883C  
using Method 1014 – test condition A1.  
using Method 1014 – test condition C.  
Burnin  
Mil Std 883C  
using Method 1015 – test condition E.  
168 Hours @ 85°C with 5v power, and clocks applied.  
Temperature Cycling  
Mil Std 883C  
using Method 1010 – test condition B.  
10 cycles -55°C to +125°C.  
The following mechanical assembly tests are Qualified to BS9450  
Vibration  
Shock  
BS9450  
BS9450  
BS9450  
Section 1.2.6.8.1  
55Hz to 500Hz at 98 m/sec acceleration.  
Section 1.2.6.6  
981 m/sec for 6 msec.  
Section 1.2.6.12  
225mmHg (altitude 9000m).  
600mmHg (altitude 2400m).  
Section 1.2.6.4  
Low Pressure  
Transport and Storage –  
Operation –  
Humidity  
BS9450  
96 Hours @ 45°C, 95% relative humidity plus condensed  
water.  
Application Recommendations  
Due to the very low levels of signal and idle channel noise specified in the Eurocom Basic Parameters Specification  
D1 – IA8 – a noisy or badly regulated power supply could cause instability putting the overall system performance  
out of specification. Adherence to the points noted below will assist in minimizing this problem.  
(a)  
Care should be taken on the design and layout of  
(e)  
Inputs and outputs should be screened wherever  
the printed circuit board.  
possible.  
(f)  
A "ground plane" connected to VSS will assist in  
(b)  
All external components (as recommended in  
eliminating external pick-up on the input and output  
pins.  
Figure 3) should be kept close to the package.  
(c)  
Tracks should be kept short, particularly the  
(g)  
It is recommended that the power supply rails  
Encoder Input capacitor and the VBIAS capacitor.  
have less than 1mVrms of noise allowed.  
(d)  
Xtal/clock tracks should be kept well away from  
(h)  
The source impedance to the Encoder Input pin  
analogue inputs and outputs.  
must be less than 100, Output Idle channel noise  
levels will improve with even lower source impedances.  
9