AN84

10

Rev. 0.6

Tables 1–14 (for Rev C and prior versions of the Si3019) and Tables 15–28 (for Rev E and later versions of the

Si3019) provide fixed digital hybrid coefficients to best match the line load with specific EIA line models. For this

calculation, the EIA line model was incorporated into the HL(w) model. The first column shows which line type was

used to calculate the hybrid coefficient. The remaining columns display the hybrid coefficients (Registers 45–52).

Table 1. ACIM = 0000 and CO Termination = 900

Ω + 2.16 µF

Line Type

Hybrid Coefficient #

1

234

56

78

EIA 0

248

249

3

254

254

0

254

0

EIA 1

251

240

255

5

250

2

254

255

EIA 2

2

240

238

7

253

254

2

254

EIA 3

5

239

235

7

252

254

2

254

EIA 4

1

242

240

1

252

255

0

255

EIA 5

7

244

233

1

250

253

0

254

EIA 6

4

244

228

6

7

247

1

253

EIA 7

248

230

8

18

234

2

1

255

2000 ft. 22 awg

253

242

254

5

250

2

255

255

2000 ft. 24 awg

252

240

254

5

250

2

254

255

2000 ft 26 awg

251

240

255

5

250

2

254

255

Table 2. ACIM = 0000 and CO Termination = 600

Ω

Line Type

Hybrid Coefficient #

1

234

56

78

EIA 0

0

000

00

00

EIA 1

255

247

255

4

253

2

0

0

EIA 2

2

243

241

8

253

255

2

254

EIA 3

5

240

238

9

252

255

2

254

EIA 4

1

242

241

2

253

255

1

255

EIA 5

7

244

234

2

251

254

1

254

EIA 6

4

244

228

6

7

247

1

253

EIA 7

248

230

8

18

234

2

1

255

2000 ft. 22 awg

2

250

254

4

253

1

0

0

2000 ft. 24 awg

1

249

254

4

253

1

0

0

2000 ft 26 awg

255

247

255

4

253

2

0

0