mt8962asr1 Zarlink Semiconductor, mt8962asr1 Datasheet - Page 10

• Manufacturer Part Number: mt8962asr1
• Description: Integrated Pcm Filter Codec
• Manufacturer: Zarlink Semiconductor

Logic Control Outputs SD0-5
These outputs are directly controlled by the logic states of bits 0-5 in Register B. A logic low (GNDD) in Register B
causes the SD outputs to assume an inactive state. A logic high (V
assume an active state (see Table 3). SD0-2 switch between GNDD and V
external
as relay drive for application of ringing to line, message waiting indication, etc.
SD3-5 are used primarily to drive external analog circuitry. Examples may include the switching in or out of gain
sections or filter sections (e.g., ring trip filter) (Figure 7).
MT8962/63/66/67 provides all six SD outputs.
MT8960/61/64/65 each packaged in an 18-pin DIP provide only four control outputs, SD0-3.
BIT 7
0
BITS 0-2
BITS 4,5
BIT 3
0
1
0
1
0
1
BIT 6
logic or
0
Inactive state - logic low (GNDD).
Active state - logic high (V
Inactive state - High Impedance.
Active state - GNDA.
Inactive state - High Impedance.
Active state - GNDD.
Normal operation.
transistor circuitry, for example, that employed on the line card for performing such functions
Supervision
Protection
MT8960/61/62/63/64/65/66/67
Battery
Ringing
Feed
2 Wire
Analog
Figure 6 - Typical Line Termination
DD
LOGIC CONTROL OUTPUTS SD
LOGIC CONTROL OUTPUTS SD
Zarlink Semiconductor Inc.
).
LOGIC CONTROL OUTPUT SD
CHIP TESTING CONTROLS
Converter
2W/4W
10
Telephone Set
MT8960/61
MT8962/63
MT8964/65
MT8966/67
PCM Highway
DD
) in Register B causes the SD outputs to
DD
4
0
, SD
-SD
3
and may be used
2
5
Data Sheet
to
control