Z0221500ZCO Zilog, Z0221500ZCO Datasheet - Page 27

• Manufacturer Part Number: Z0221500ZCO
• Description: Z02215 ONE-CHIP MODEM EVAL KIT
• Manufacturer: Zilog

Specifications of Z0221500ZCO

• Main Purpose: Telecom, Modem
• Utilized Ic / Part: Z02215
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Z02215 Single-Chip Modem
Evaluation Board User Manual
21
modem’s DAA hardware. DTMFLOLEV_dBm and DTMFLILEV_dBm
must not exceed the maximum transmit level of the data pump.
The parameter DTMFLILEV_dBm contains the high-end transmit level;
see DTMFLOLEV.
Tone Detection Threshold Levels
All values are in dBm and can be fractional. Adjust these values for
expected loss or gain in the modem’s DAA. On and Off thresholds pro-
vide hysteresis in the tone detectors. On and Off thresholds must differ by
at least 3dBm. Tone levels above the On threshold are detected; tone lev-
els below the Off threshold ar not detected.
The parameter TONELEV_DON_dBm contains the On threshold for the
detection of discrete answer tones such as V.21, Bell 103/212, V.22bis,
and V.25.
The parameter CPON_dBm contains the On threshold for CALL-
PROGRESS tone detection.
The parameter CPOFF_dBm contains the Off threshold for CALL-
PROGRESS tone detection.
The parameter DTON_dBm contains the On threshold for DIAL tone
detection.
The parameter DTOFF_dBm contains the Off threshold for DIAL tone
detection.
The parameter DRLSTON_dBm contains the On threshold for Receive
Line Signal Detect (carrier).
The parameter DRLSTOFF_dBm contains the Off threshold for Receive
Line Signal Detect (carrier).
Transmit Level Offset
The parameter XMIT_ OFFSET contains the units of dBm and the value
may be fractional. It is used to offset the transmit level in all data modes
Setup and Installation
PRELIMINARY
UM002304-0802