ETC ES2898 V.90 pci dsp modem solution Datasheet

ES2898/ES2828
V.90 PCI DSP Modem Solution
Product Brief
ESS Technology, Inc.
DESCRIPTION
MODEM FEATURES
®
The ESS Technology ES2898/ES2828 TeleDrive chipset
is a highly integrated solution that brings advanced
modem functionality to notebooks, desktops, and add-incards. The ES2898/ES2828 chipset provides an efficient
56k (V.90) data/fax solution and adds both a telephone
answering machine (TAM) feature and a full-duplex
speakerphone feature.
The data pump algorithms run on the ES2898 DSP, along
with the echo cancellation required for implementing a fullduplex speakerphone feature. The host CPU is utilized to
run the modem controller functions, including the standard
AT command set, V.42bis data compression features,
Classes 1 and 2 fax, and ITU-T V.80 sync access to
support H.324 video conferencing applications. The
ES2898 DSP offers an integrated PCI bus interface.
The ES2828 is the companion analog-front-end (AFE)
chip to the ES2898. It integrates a low-pass, continuoustime anti-aliasing filter, a 16-bit resolution ADC, a 16-bit
DAC, a low-pass output-reconstruction filter, and a CHI
bus interface to interface to the ES2898. The ES2828
includes two signal processing channels that operate
synchronously so that data reception at the ADC channel
and data transmission from the DAC channel occur during
the same time interval. The ES2828 also incorporates an
AC-Link to interface to core logic chipsets to provide a
standalone MC‘97 host-based V.90/V.92 modem solution.
The ES2898 DSP is available in an industry-standard 100pin low-profile quad flat pack (LQFP) package. The
ES2828 is available in an industry-standard 48-pin lowprofile quad flat pack (LQFP) package.
• Data mode capabilities:
—–
V.90 56 kbps
—–
V.34 33.6 kbps and fallbacks
—–
Standard AT command set
—–
V.42 (LAPM) and MNP error correction
—–
V.42bis/MNP 5 data compression
—–
3.3V power supply, 5V input tolerant
• Fax mode capabilities:
—–
ITU-T V.17, V.21 ch2, V.27ter, and V.29
—–
Group 3 (TIA/EIA 578 Class 1 and Class 2)
• Telephony capabilities:
—–
Telephone answering machine
—–
Full duplex speakerphone
—–
Caller ID
• Sigma-delta modulation codec
• Programmable downsampling frequency for modem and
voice applications
•
•
•
•
•
ACPI power management support
TIES escape sequence
V.80 (H.324 software stack compatible)
Fully ACPI-compliant
Microsoft Windows 98/SE/ME/2000:
—–
UNIMODEM V
—–
TAPI
• Microsoft Windows NT 4.0
SYSTEM BLOCK DIAGRAM
Figure 1 Shows the ES2898/ES2828 system block
diagram.
CHI BUS I/F
PCI BUS
INTERFACE
ES2898
TeleDrive
4
ES2828
Modem AFE
DAA
18.816 MHz
Figure 1 ES2898/ES2828 System Block Diagram
ESS Technology, Inc.
SAM0402-050301
1
ES2898/ES2828 PRODUCT BRIEF
PINOUT
PINOUT
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
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
ES2898S
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
100-Pin LQFP
FL1
FL0
VDD
GND
VDD
BSEL1
CLKOUT
XTALO
XTALI
GND
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
CBE0#
CBE1#
AD8
AD9
AD10
AD11
AD12
42
GPIO_5
43
DGND
44
GPIO_6
45
GPIO_7
46
GPIO_8
47
GPIO_9
48
CKO
26
SO
DVDD
SC
XTALO
FS
XTALI
RST#
ID1
PWDN#
ID0
27
25
ES2828S
48-PIN LQFP
DPBX
1
2
3
4
5
6
7
8
9
10
11
12
VCM
GPIO_4
28
AVDD
41
29
RXIN-
GPIO_3
30
RXIN+
40
31
AUX-
GPIO_2
32
AUX+
39
33
AGND
GPIO_1
34
AGND
38
35
AGND
GPIO_0
36
DVDD
37
ACLINK/GPIO_B
VAUX
SDATA_IN
AD28
AD27
AD26
AD25
AD24
AD23
AD22
AD21
AD20
AD19
AD18
AD17
AD16
GND
CBE3#
VDD
VDD
VDD
NC
GND
CBE2#
GND
AD15
AD14
AD13
DT0
VDD
TEST/PF9
RING_IN
VAUX
PME#
VAUXP
VDD
PCI CLK
VDD
INTA
PAR
RST#
FRAME#
GND
IRDY#
STOP#
VDD
DAA_PM
TRDY#
IDSEL
DEVSEL#
AD31
AD30
AD29
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
DR0
TFS0
RFS0
SCLK0
GND
DT1
DR1
TFS1
RFS1
SCLK1
NC
NC
NC
SEDO
BSEL0
VDD(5V)
PF7
PF6
PF5
PF4
PF3
PF2
PF1
PF0
FL2
Figure 2 shows the ES2898 and ES2828 pinout diagrams.
24
SI
23
DVDD
22
CTST
21
DGND
20
HCT
19
VCMX
18
AGND
17
TX-
16
TX+
15
VRBP
14
VREF
13
VCBP
Figure 2 ES2898 and ES2828 Pinout Diagrams
2
SAM0402-050301
ESS Technology, Inc.
ES2898/ES2828 PRODUCT BRIEF
PIN DESCRIPTIONS
PIN DESCRIPTIONS
Table 1 lists the ES2898 pin descriptions. Table 2 lists the
ES2828 pin descriptions.
Table 1 ES2898 Pin Descriptions
Names
AD[16:31]
Pin Numbers
I/O
Definitions
When the ES2898 interfaces a PCI bus, these pins function as AD[16:31]. The PCI bus
implements a 32-bit multiplexed address and data bus.
1:13, 98, 99, 100
I
14, 20, 22, 41, 47,
71, 90
—
15, 21, 31, 32
I
Bus command/byte enable. These pins are multiplexed. During the address phase of a bus
transaction, these pins define the bus command. During the data phase, these pins are used as
byte enables.
16, 18, 46, 48, 77,
83, 85, 93
I
Digital supply voltage, 3.3V.
17
I
When the ES2898 interfaces a PCI bus, use an internal chip select and tie the CS pin to this
VDD pin through a pullup 10k Ω resistor.
19
O
Parity error output.
23:30, 33:40
I/O
When the ES2898 interfaces a PCI bus, these pins function as AD[15:0]. The PCI bus
implements a 32-bit multiplexed address and data bus.
XTALI
42
I
ES2898 clock input. This pin can be driven by either a crystal or an oscillator. When using a
crystal, XTALO is used as the other crystal pin. When using an oscillator, the output of the
oscillator is connected to XTALI. An internal clock doubler doubles the frequency at XTALI.
XTALO
43
O
Works in conjunction with XTALI when a crystal is used. When an oscillator is used, XTALO is
left unconnected.
CLKOUT
44
O
Fixed-frequency clock output. The frequency of this pin is the same as the crystal input of the
DSP clock. The clock is stopped during D2 and D3 states when the ST_CLKOUT bit is set.
45, 61
I
Used to determine the operating mode of the ES2898. These pins are sampled at the falling
edge of reset and are encoded as follows:.
GND
C/BE[3:0]#
VDD
VDD
PERR#
AD[0:15]
BSEL1 / BSEL0
Ground.
Configuration
BSEL1 (pin 45)
BSEL0 (pin 61)
Reserved
0
0
Reserved
0
1
PCI interface
1
0
Generic 16-bit host interface
1
1
FL0
49
O
Used as flag 0 output during normal operation.
FL1
50
O
Used as flag 1 output during normal operation while the bypass circuitry is included. Will be
activated during power-down mode.
FL2
51
O
Functions as flag 2 output during normal operation, and can also be used to provide a passthrough reset to the ES2828. To bring the devices out of reset, write a logic zero. FL2 carries
the reset signal for the ES2828.
52, 53, 54, 55, 56,
57, 58, 59
I/O
General-purpose programmable bidirectional flag pins. These pins can be used for interfacing
with a telephone or other device, performing such functions as phone-off-hook, phone-on-hook,
ring, caller ID, etc. PF[0] is specially designed to support the ring function.
VDD(5V)
60
I
Digital supply voltage. If the ES2898 interfaces with a 5V input, tie this pin to 5V. Otherwise, tie
this pin to 3.3V.
SEDO
62
I
Serial EEPROM data input.
SECS
63
O
Serial EEPROM chip select.
SEDI
64
O
Serial EEPROM serial data output.
SECLK
65
O
Serial EEPROM clock.
SCLK1
66
I/O
One of two serial clock inputs. This clock can be generated either by the ES2898 or by the
ES2828.
PF[7:0]
ESS Technology, Inc.
SAM0402-050301
3
ES2898/ES2828 PRODUCT BRIEF
PIN DESCRIPTIONS
Table 1 ES2898 Pin Descriptions (Continued)
Names
Pin Numbers
I/O
RFS1
67
I/O
Receive frame for serial port 1. Can be generated either internally or externally. This signal is
asserted one clock before data is sent on the DR1 pin.
TFS1
68
I/O
Transmit frame for serial port 1. Can be generated either internally or externally.
DR1
69
I
Data receive pin for serial port 1.
DT1
70
O
Data transmit pin for serial port 1.
SCLK0
72
I/O
One of two serial clock inputs. This clock can be generated either by the ES2898 or by the
ES2828.
RFS0
73
I/O
Receive frame for serial port 0. Can be generated either internally or externally. This signal is
asserted one clock before data is sent on the DR0 pin.
TFS0
74
I/O
Transmit frame for serial port 0. Can be generated either internally or externally.
DR0
75
I
Data receive pin for serial port 0.
DT0
76
O
Data transmit pin for serial port 0.
TEST / PF9
78
I
Used during device test. Tie this pin to ground through a 4.7k Ω resistor.
RING_IN
79
I
Used for ring detect input during the D3cold state to drive the device back to its default power-up
state.
VAUX
80
I
Power to device during implementation of the D3cold state required by PCI Power Management
Interface specification.
PME#
81
O
PME# output.
82
I
VAUX support detection input. VAUXP pin is driven high to indicate that ACPI is supported with
D3cold state. No support when driven low.
CLK
84
I
PCI bus input clock. Functions as PCI CLK pin and operates at 33 MHz.
INTA#
86
O
Interrupt A. Used to request an interrupt from the PCI bus.
PAR
87
I/O
Parity pin. PAR is stable and valid one clock after the address phase. For data phases, PAR is
stable and valid one clock after either IRDY# is asserted on a write transaction or TRDY# is
asserted on a read transaction.
FRAME#
89
I/O
Cycle frame. FRAME# is driven by the current master to indicate the beginning and duration of
an access. FRAME# is asserted to indicate the start of a bus transaction. When FRAME# is
deasserted, the transaction is in the final data phase or has been completed.
IRDY#
91
I/O
Initiator ready. IRDY# is used in conjuction with TRDY# and indicates the bus master’s ability to
complete the current data phase of a transaction. During a write transaction, IRDY# indicates
that valid data is present on AD[16:31] and AD[0:15]. During a read transaction, IRDY#
indicates that master is prepared to accept data. Wait cycles are inserted until both IRDY# and
TRDY# are asserted together.
STOP#
92
I/O
Stop. STOP# indicates the current target is requesting the master to stop the current
transaction.
TRDY#
95
O
Target ready. TRDY# is used in conjuction with IRDY# and indicates the bus master’s ability to
complete the current data phase of a transaction. During a write transaction, TRDY# indicates
that valid data is present on AD[16:31] and AD[0:15]. During a read transaction, TRDY#
indicates that master is prepared to accept data. Wait cycles are inserted until both TRDY# and
IRDY# are asserted together.
IDSEL
96
O
Initialization device select. IDSEL is used as a chip select during configuration read and write
transactions.
DEVSEL#
97
O
Device select. When actively driven, DEVSEL# indicates that the driving device has decoded its
address as the target of the current access. As an input, DEVSEL# indicates whether any
device on the bus has been selected.
RESET#
88
I
Active-low ES2898 reset input.
DAA_PM
94
O
DAA power control output.
VAUXP
4
SAM0402-050301
Definitions
ESS Technology, Inc.
ES2898/ES2828 PRODUCT BRIEF
Table 2 ES2828 Pin Descriptions
Names
Pin Numbers
I/O
DPBX
1
I
ACLINK/GPIO_B
2
I/O
DVDD
3, 23, 29
P
3.3V digital power.
AGND
4:6, 18
I
Analog ground.
AUX+
7
I
Codec analog auxiliary differential positive input. The DC level is Vcm, and the full-scale input is
either 0.22 Vp-p ±5% or 1.1 Vp-p±5%, depending on the gain setting.
AUX-
8
I
Codec analog auxiliary differential negative input. The DC level is Vcm, and the full-scale input is
either 0.22 Vp-p ±5% or 1.1 Vp-p±5%, depending on the gain setting.
RXIN+
9
I
Codec analog differential positive input. The DC level is Vcm, and the full-scale input is either 0.22
Vp-p ±5% or 1.1 Vp-p±5%, depending on the gain setting.
RXIN-
10
I
Codec analog differential negative input. The DC level is Vcm, and the full-scale input is either
0.22 Vp-p ±5% or 1.1 Vp-p±5%, depending on the gain setting.
AVDD
11
I
Analog 5.0V supply.
VCM
12
O
Common mode voltage bypass 1. Has a range of 2.16V±5%. Bypass to VCBP with 0.1-µF
ceramic chip capacitor parallel with 10-µF tantalum capacitor.
VCBP
13
I
Ground pin for VCM.
VREF
14
O
Voltage reference bypass. Has a range of 1.2356V±5%. Bypass to VRBP with 0.1-µF ceramic
chip capacitor parallel with 10-µF tantalum capacitor.
VRBP
15
I
Ground pin for VREF.
TX+
16
O
Codec positive analog output. The DC level is Vcm, and the full-scale ac output is either 2.8V
p-p±5% or 1.4V p-p±5%, depending on the gain setting. The maximum loading is 1k Ω, in parallel
with 20 pF for modem applications. For audio applications with low-impedance load, the maximum
distortion-free (THD <–60 db) current is 10 mA rms.
TX-
17
O
Codec negative analog output. The DC level is Vcm, and the full-scale ac output is either 2.8V
p-p±5% or 1.4V p-p±5%, depending on the gain setting. The maximum loading is 1k Ω, in parallel
with 20 pF for modem applications. For audio applications with low-impedance load, the maximum
distortion-free (THD <–60 db) current is 10 mA rms.
VCMX
19
O
Codec common mode reference voltage output. 2.16V±5%, maximum current ±500 µA, maximum
capacitive load 20 pF.
HCT
20
I
Codec digital input mode control.
DGND
21, 44
P
Digital ground.
CTST
22
I
Codec sigma delta modulator test port output enable.
SI
24
I
Serial port input (default).
SO
25
O
Serial port output without VAUX support.
SC
26
I/O
Serial port clock output. While input must be TTL-compatible, should be able to handle 3.3V input.
FS
27
O
Serial port frame sync.
CKO
28
O
3.3V clock output.
XTALO
30
O
24.576-MHz crystal oscillator output.
XTALI
31
I
24.576-MHz crystal oscillator input.
RST#
32
I
Reset.
ESS Technology, Inc.
Definitions
Digital PBX detection.
Default for CHI bus mode (internal pulldown). Pull high for AC-Link mode.
SAM0402-050301
5
ES2898/ES2828 PRODUCT BRIEF
ORDERING INFORMATION
Table 2 ES2828 Pin Descriptions (Continued)
Names
Pin Numbers
I/O
Definitions
ID1
33
I
Modem AFE configuration strap pin 1. When pulled down internally with ID0 pin 35, helps set
primary and secondary modem codec ID configuration.
PWDN#
34
I
Power down.
ID0
35
I
Modem AFE configuration strap pin 0. When pulled down internally with ID1 pin 33, helps set
primary and secondary modem codec ID configuration.
SDATA_IN
36
O
Serial port output with VAUX support.
VAUX
37
I
Power to device during implementation of the D3cold state required by PCI power management
Interface specification.
GPIO_0
38
I
GPIO_0 input/output.
GPIO_1
39
I/O
GPIO_1 input/output.
GPIO_2
40
I/O
Used for voice relay control pin (output).
GPIO_3
41
I/O
GPIO_3 input/output.
GPIO_4
42
I/O
GPIO_4 input/output.
GPIO_5
43
I/O
GPIO_5 input/output.
GPIO_6
45
I/O
GPIO_6 input/output.
GPIO_7
46
I/O
GPIO_7 input/output.
GPIO_8
47
I/O
GPIO_8 input/output.
GPIO_9
48
I/O
GPIO_9 input/output.
ORDERING INFORMATION
Descriptions
Part Numbers
V.90 PCI DSP Modem
100-pin LQFP
ES2828S
Modem Analog Front End
48-pin LQFP
ESS Technology, Inc.
48401 Fremont Blvd.
Fremont, CA 94538
Tel: (510) 492-1088
Fax: (510) 492-1898
6
Packages
ES2898S
No part of this publication may be reproduced, stored in a
retrieval system, transmitted, or translated in any form or
by any means, electronic, mechanical, manual, optical, or
otherwise, without the prior written permission of ESS
Technology, Inc.
ESS Technology, Inc. assumes no responsibility for any
errors contained herein.
ESS Technology, Inc. makes no representations or
warranties regarding the content of this document.
All other trademarks are owned by their respective
holders and are used for identification purposes only.
TeleDrive is a registered trademark of ESS Technology, Inc.
(P) U.S. patents pending.
All specifications are subject to change without prior
notice.
© 2001 ESS Technology, Inc.
SAM0402-050301