BT8370KPF

Manufacturer Part NumberBT8370KPF
DescriptionFully integrated T1/E1 framer and line interface
ManufacturerConexant Systems, Inc.
BT8370KPF datasheet
 


Specifications of BT8370KPF

CaseQFP  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
Page 101
102
Page 102
103
Page 103
104
Page 104
105
Page 105
106
Page 106
107
Page 107
108
Page 108
109
Page 109
110
Page 110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
Page 105/323:

Line Build Out

Download datasheet (3Mb)Embed
PrevNext
Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
2.9.2.2 Output Jitter
The maximum output jitter generated on XTIP/XRING dependents on the
transmit clock source selected. Refer to CLAD and JAT descriptions.
2.9.3 Line Build Out
In the Bt8370 long haul device, three LBO filter networks can be enabled in the
TLIU to attenuate XTIP/XRING outputs in 7.5 dB steps, per the signal transfer
function defined by FCC Part 68 Regulations. (See LBO[1:0] in TLIU_CR.) The
number of LBO filters selected is based on the attached cable length. For short
line lengths, larger LBO attenuation prevents far-end crosstalk. For longer line
lengths, the appropriate line build-out must be selected. The following equation
lists the transfer function for each of the 7.5 dB LBO filters:
where:
N8370DSE
2.9 Transmit Line Interface Unit
2
V
n
S
+
n
S
+
n
out
2
1
0
--------- -
-------------------------------------------------------- -
=
V
3
2
d
S
+
d
S
+
d
S
+
d
in
3
2
1
0
6
n
=
1.6049
10
0
1 –
n
=
7.9861
10
1
8 –
n
=
9.2404
10
2
+6
d
=
2.1612
10
0
d
=
1.7223
1
7 –
d
=
4.575
10
2
14
d
=
3.8307
10
3
S
=
j2 f
f
=
frequency Hz
Conexant
2.0 Circuit Description
2-77